mmc: remove custom error codes

Convert the MMC layer to use standard error codes and not its own,
incompatible values.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>

16 files changed, 203 insertions, 202 deletions

diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c
index 93fe2e5dd616..0da341acf32b 100644
--- a/drivers/mmc/card/block.c
+++ b/drivers/mmc/card/block.c
@@ -154,7 +154,7 @@ static u32 mmc_sd_num_wr_blocks(struct mmc_card *card)
         cmd.flags = MMC_RSP_R1 | MMC_CMD_AC;
 
         err = mmc_wait_for_cmd(card->host, &cmd, 0);
-        if ((err != MMC_ERR_NONE) || !(cmd.resp[0] & R1_APP_CMD))
+        if (err || !(cmd.resp[0] & R1_APP_CMD))
                 return (u32)-1;
 
         memset(&cmd, 0, sizeof(struct mmc_command));
@@ -192,7 +192,7 @@ static u32 mmc_sd_num_wr_blocks(struct mmc_card *card)
 
         mmc_wait_for_req(card->host, &mrq);
 
-        if (cmd.error != MMC_ERR_NONE || data.error != MMC_ERR_NONE)
+        if (cmd.error || data.error)
                 return (u32)-1;
 
         blocks = ntohl(blocks);
diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
index bfd2ae5bd669..63b67296e92d 100644
--- a/drivers/mmc/core/core.c
+++ b/drivers/mmc/core/core.c
@@ -598,7 +598,7 @@ void mmc_rescan(struct work_struct *work)
                 mmc_send_if_cond(host, host->ocr_avail);
 
                 err = mmc_send_app_op_cond(host, 0, &ocr);
-                if (err == MMC_ERR_NONE) {
+                if (!err) {
                         if (mmc_attach_sd(host, ocr))
                                 mmc_power_off(host);
                 } else {
@@ -607,7 +607,7 @@ void mmc_rescan(struct work_struct *work)
                          * searching for MMC cards.
                          */
                         err = mmc_send_op_cond(host, 0, &ocr);
-                        if (err == MMC_ERR_NONE) {
+                        if (!err) {
                                 if (mmc_attach_mmc(host, ocr))
                                         mmc_power_off(host);
                         } else {
diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c
index 21d7f48e1d4e..fe483d5af744 100644
--- a/drivers/mmc/core/mmc.c
+++ b/drivers/mmc/core/mmc.c
@@ -164,10 +164,10 @@ static int mmc_read_ext_csd(struct mmc_card *card)
 
         BUG_ON(!card);
 
-        err = MMC_ERR_FAILED;
+        err = -EIO;
 
         if (card->csd.mmca_vsn < CSD_SPEC_VER_4)
-                return MMC_ERR_NONE;
+                return 0;
 
         /*
          * As the ext_csd is so large and mostly unused, we don't store the
@@ -178,11 +178,11 @@ static int mmc_read_ext_csd(struct mmc_card *card)
                 printk(KERN_ERR "%s: could not allocate a buffer to "
                         "receive the ext_csd. mmc v4 cards will be "
                         "treated as v3.\n", mmc_hostname(card->host));
-                return MMC_ERR_FAILED;
+                return -ENOMEM;
         }
 
         err = mmc_send_ext_csd(card, ext_csd);
-        if (err != MMC_ERR_NONE) {
+        if (err) {
                 /*
                  * High capacity cards should have this "magic" size
                  * stored in their CSD.
@@ -197,7 +197,7 @@ static int mmc_read_ext_csd(struct mmc_card *card)
                                 "EXT_CSD, performance might "
                                 "suffer.\n",
                                 mmc_hostname(card->host));
-                        err = MMC_ERR_NONE;
+                        err = 0;
                 }
                 goto out;
         }
@@ -258,14 +258,14 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr,
 
         /* The extra bit indicates that we support high capacity */
         err = mmc_send_op_cond(host, ocr | (1 << 30), NULL);
-        if (err != MMC_ERR_NONE)
+        if (err)
                 goto err;
 
         /*
          * Fetch CID from card.
          */
         err = mmc_all_send_cid(host, cid);
-        if (err != MMC_ERR_NONE)
+        if (err)
                 goto err;
 
         if (oldcard) {
@@ -290,7 +290,7 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr,
          * Set card RCA.
          */
         err = mmc_set_relative_addr(card);
-        if (err != MMC_ERR_NONE)
+        if (err)
                 goto free_card;
 
         mmc_set_bus_mode(host, MMC_BUSMODE_PUSHPULL);
@@ -300,7 +300,7 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr,
                  * Fetch CSD from card.
                  */
                 err = mmc_send_csd(card, card->raw_csd);
-                if (err != MMC_ERR_NONE)
+                if (err)
                         goto free_card;
 
                 err = mmc_decode_csd(card);
@@ -315,7 +315,7 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr,
          * Select card, as all following commands rely on that.
          */
         err = mmc_select_card(card);
-        if (err != MMC_ERR_NONE)
+        if (err)
                 goto free_card;
 
         if (!oldcard) {
@@ -323,7 +323,7 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr,
                  * Fetch and process extened CSD.
                  */
                 err = mmc_read_ext_csd(card);
-                if (err != MMC_ERR_NONE)
+                if (err)
                         goto free_card;
         }
 
@@ -334,7 +334,7 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr,
                 (host->caps & MMC_CAP_MMC_HIGHSPEED)) {
                 err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
                         EXT_CSD_HS_TIMING, 1);
-                if (err != MMC_ERR_NONE)
+                if (err)
                         goto free_card;
 
                 mmc_card_set_highspeed(card);
@@ -363,7 +363,7 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr,
                 (host->caps & MMC_CAP_4_BIT_DATA)) {
                 err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
                         EXT_CSD_BUS_WIDTH, EXT_CSD_BUS_WIDTH_4);
-                if (err != MMC_ERR_NONE)
+                if (err)
                         goto free_card;
 
                 mmc_set_bus_width(card->host, MMC_BUS_WIDTH_4);
@@ -372,14 +372,14 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr,
         if (!oldcard)
                 host->card = card;
 
-        return MMC_ERR_NONE;
+        return 0;
 
 free_card:
         if (!oldcard)
                 mmc_remove_card(card);
 err:
 
-        return MMC_ERR_FAILED;
+        return -EIO;
 }
 
 /*
@@ -413,7 +413,7 @@ static void mmc_detect(struct mmc_host *host)
 
         mmc_release_host(host);
 
-        if (err != MMC_ERR_NONE) {
+        if (err) {
                 mmc_remove(host);
 
                 mmc_claim_host(host);
@@ -502,7 +502,7 @@ static void mmc_resume(struct mmc_host *host)
         err = mmc_init_card(host, host->ocr, host->card);
         mmc_release_host(host);
 
-        if (err != MMC_ERR_NONE) {
+        if (err) {
                 mmc_remove(host);
 
                 mmc_claim_host(host);
@@ -565,7 +565,7 @@ int mmc_attach_mmc(struct mmc_host *host, u32 ocr)
          * Detect and init the card.
          */
         err = mmc_init_card(host, host->ocr, NULL);
-        if (err != MMC_ERR_NONE)
+        if (err)
                 goto err;
 
         mmc_release_host(host);
diff --git a/drivers/mmc/core/mmc_ops.c b/drivers/mmc/core/mmc_ops.c
index 913e75f00843..15cd575effaa 100644
--- a/drivers/mmc/core/mmc_ops.c
+++ b/drivers/mmc/core/mmc_ops.c
@@ -40,10 +40,10 @@ static int _mmc_select_card(struct mmc_host *host, struct mmc_card *card)
         }
 
         err = mmc_wait_for_cmd(host, &cmd, MMC_CMD_RETRIES);
-        if (err != MMC_ERR_NONE)
+        if (err)
                 return err;
 
-        return MMC_ERR_NONE;
+        return 0;
 }
 
 int mmc_select_card(struct mmc_card *card)
@@ -99,13 +99,13 @@ int mmc_send_op_cond(struct mmc_host *host, u32 ocr, u32 *rocr)
 
         for (i = 100; i; i--) {
                 err = mmc_wait_for_cmd(host, &cmd, 0);
-                if (err != MMC_ERR_NONE)
+                if (err)
                         break;
 
                 if (cmd.resp[0] & MMC_CARD_BUSY || ocr == 0)
                         break;
 
-                err = MMC_ERR_TIMEOUT;
+                err = -ETIMEDOUT;
 
                 mmc_delay(10);
         }
@@ -131,12 +131,12 @@ int mmc_all_send_cid(struct mmc_host *host, u32 *cid)
         cmd.flags = MMC_RSP_R2 | MMC_CMD_BCR;
 
         err = mmc_wait_for_cmd(host, &cmd, MMC_CMD_RETRIES);
-        if (err != MMC_ERR_NONE)
+        if (err)
                 return err;
 
         memcpy(cid, cmd.resp, sizeof(u32) * 4);
 
-        return MMC_ERR_NONE;
+        return 0;
 }
 
 int mmc_set_relative_addr(struct mmc_card *card)
@@ -154,10 +154,10 @@ int mmc_set_relative_addr(struct mmc_card *card)
         cmd.flags = MMC_RSP_R1 | MMC_CMD_AC;
 
         err = mmc_wait_for_cmd(card->host, &cmd, MMC_CMD_RETRIES);
-        if (err != MMC_ERR_NONE)
+        if (err)
                 return err;
 
-        return MMC_ERR_NONE;
+        return 0;
 }
 
 int mmc_send_csd(struct mmc_card *card, u32 *csd)
@@ -176,12 +176,12 @@ int mmc_send_csd(struct mmc_card *card, u32 *csd)
         cmd.flags = MMC_RSP_R2 | MMC_CMD_AC;
 
         err = mmc_wait_for_cmd(card->host, &cmd, MMC_CMD_RETRIES);
-        if (err != MMC_ERR_NONE)
+        if (err)
                 return err;
 
         memcpy(csd, cmd.resp, sizeof(u32) * 4);
 
-        return MMC_ERR_NONE;
+        return 0;
 }
 
 int mmc_send_ext_csd(struct mmc_card *card, u8 *ext_csd)
@@ -218,12 +218,12 @@ int mmc_send_ext_csd(struct mmc_card *card, u8 *ext_csd)
 
         mmc_wait_for_req(card->host, &mrq);
 
-        if (cmd.error != MMC_ERR_NONE)
+        if (cmd.error)
                 return cmd.error;
-        if (data.error != MMC_ERR_NONE)
+        if (data.error)
                 return data.error;
 
-        return MMC_ERR_NONE;
+        return 0;
 }
 
 int mmc_switch(struct mmc_card *card, u8 set, u8 index, u8 value)
@@ -244,10 +244,10 @@ int mmc_switch(struct mmc_card *card, u8 set, u8 index, u8 value)
         cmd.flags = MMC_RSP_R1B | MMC_CMD_AC;
 
         err = mmc_wait_for_cmd(card->host, &cmd, MMC_CMD_RETRIES);
-        if (err != MMC_ERR_NONE)
+        if (err)
                 return err;
 
-        return MMC_ERR_NONE;
+        return 0;
 }
 
 int mmc_send_status(struct mmc_card *card, u32 *status)
@@ -265,12 +265,12 @@ int mmc_send_status(struct mmc_card *card, u32 *status)
         cmd.flags = MMC_RSP_R1 | MMC_CMD_AC;
 
         err = mmc_wait_for_cmd(card->host, &cmd, MMC_CMD_RETRIES);
-        if (err != MMC_ERR_NONE)
+        if (err)
                 return err;
 
         if (status)
                 *status = cmd.resp[0];
 
-        return MMC_ERR_NONE;
+        return 0;
 }
 
diff --git a/drivers/mmc/core/sd.c b/drivers/mmc/core/sd.c
index 1edc62b1e5c6..00895c99d9bb 100644
--- a/drivers/mmc/core/sd.c
+++ b/drivers/mmc/core/sd.c
@@ -193,30 +193,30 @@ static int mmc_read_switch(struct mmc_card *card)
         u8 *status;
 
         if (card->scr.sda_vsn < SCR_SPEC_VER_1)
-                return MMC_ERR_NONE;
+                return 0;
 
         if (!(card->csd.cmdclass & CCC_SWITCH)) {
                 printk(KERN_WARNING "%s: card lacks mandatory switch "
                         "function, performance might suffer.\n",
                         mmc_hostname(card->host));
-                return MMC_ERR_NONE;
+                return 0;
         }
 
-        err = MMC_ERR_FAILED;
+        err = -EIO;
 
         status = kmalloc(64, GFP_KERNEL);
         if (!status) {
                 printk(KERN_ERR "%s: could not allocate a buffer for "
                         "switch capabilities.\n", mmc_hostname(card->host));
-                return err;
+                return -ENOMEM;
         }
 
         err = mmc_sd_switch(card, 0, 0, 1, status);
-        if (err != MMC_ERR_NONE) {
+        if (err) {
                 printk(KERN_WARNING "%s: problem reading switch "
                         "capabilities, performance might suffer.\n",
                         mmc_hostname(card->host));
-                err = MMC_ERR_NONE;
+                err = 0;
                 goto out;
         }
 
@@ -238,28 +238,28 @@ static int mmc_switch_hs(struct mmc_card *card)
         u8 *status;
 
         if (card->scr.sda_vsn < SCR_SPEC_VER_1)
-                return MMC_ERR_NONE;
+                return 0;
 
         if (!(card->csd.cmdclass & CCC_SWITCH))
-                return MMC_ERR_NONE;
+                return 0;
 
         if (!(card->host->caps & MMC_CAP_SD_HIGHSPEED))
-                return MMC_ERR_NONE;
+                return 0;
 
         if (card->sw_caps.hs_max_dtr == 0)
-                return MMC_ERR_NONE;
+                return 0;
 
-        err = MMC_ERR_FAILED;
+        err = -EIO;
 
         status = kmalloc(64, GFP_KERNEL);
         if (!status) {
                 printk(KERN_ERR "%s: could not allocate a buffer for "
                         "switch capabilities.\n", mmc_hostname(card->host));
-                return err;
+                return -ENOMEM;
         }
 
         err = mmc_sd_switch(card, 1, 0, 1, status);
-        if (err != MMC_ERR_NONE)
+        if (err)
                 goto out;
 
         if ((status[16] & 0xF) != 1) {
@@ -309,18 +309,18 @@ static int mmc_sd_init_card(struct mmc_host *host, u32 ocr,
          * block-addressed SDHC cards.
          */
         err = mmc_send_if_cond(host, ocr);
-        if (err == MMC_ERR_NONE)
+        if (!err)
                 ocr |= 1 << 30;
 
         err = mmc_send_app_op_cond(host, ocr, NULL);
-        if (err != MMC_ERR_NONE)
+        if (err)
                 goto err;
 
         /*
          * Fetch CID from card.
          */
         err = mmc_all_send_cid(host, cid);
-        if (err != MMC_ERR_NONE)
+        if (err)
                 goto err;
 
         if (oldcard) {
@@ -344,7 +344,7 @@ static int mmc_sd_init_card(struct mmc_host *host, u32 ocr,
          * Set card RCA.
          */
         err = mmc_send_relative_addr(host, &card->rca);
-        if (err != MMC_ERR_NONE)
+        if (err)
                 goto free_card;
 
         mmc_set_bus_mode(host, MMC_BUSMODE_PUSHPULL);
@@ -354,7 +354,7 @@ static int mmc_sd_init_card(struct mmc_host *host, u32 ocr,
                  * Fetch CSD from card.
                  */
                 err = mmc_send_csd(card, card->raw_csd);
-                if (err != MMC_ERR_NONE)
+                if (err)
                         goto free_card;
 
                 err = mmc_decode_csd(card);
@@ -368,7 +368,7 @@ static int mmc_sd_init_card(struct mmc_host *host, u32 ocr,
          * Select card, as all following commands rely on that.
          */
         err = mmc_select_card(card);
-        if (err != MMC_ERR_NONE)
+        if (err)
                 goto free_card;
 
         if (!oldcard) {
@@ -376,7 +376,7 @@ static int mmc_sd_init_card(struct mmc_host *host, u32 ocr,
                  * Fetch SCR from card.
                  */
                 err = mmc_app_send_scr(card, card->raw_scr);
-                if (err != MMC_ERR_NONE)
+                if (err)
                         goto free_card;
 
                 err = mmc_decode_scr(card);
@@ -387,7 +387,7 @@ static int mmc_sd_init_card(struct mmc_host *host, u32 ocr,
                  * Fetch switch information from card.
                  */
                 err = mmc_read_switch(card);
-                if (err != MMC_ERR_NONE)
+                if (err)
                         goto free_card;
         }
 
@@ -395,7 +395,7 @@ static int mmc_sd_init_card(struct mmc_host *host, u32 ocr,
          * Attempt to change to high-speed (if supported)
          */
         err = mmc_switch_hs(card);
-        if (err != MMC_ERR_NONE)
+        if (err)
                 goto free_card;
 
         /*
@@ -418,7 +418,7 @@ static int mmc_sd_init_card(struct mmc_host *host, u32 ocr,
         if ((host->caps & MMC_CAP_4_BIT_DATA) &&
                 (card->scr.bus_widths & SD_SCR_BUS_WIDTH_4)) {
                 err = mmc_app_set_bus_width(card, MMC_BUS_WIDTH_4);
-                if (err != MMC_ERR_NONE)
+                if (err)
                         goto free_card;
 
                 mmc_set_bus_width(host, MMC_BUS_WIDTH_4);
@@ -442,14 +442,14 @@ static int mmc_sd_init_card(struct mmc_host *host, u32 ocr,
         if (!oldcard)
                 host->card = card;
 
-        return MMC_ERR_NONE;
+        return 0;
 
 free_card:
         if (!oldcard)
                 mmc_remove_card(card);
 err:
 
-        return MMC_ERR_FAILED;
+        return -EIO;
 }
 
 /*
@@ -483,7 +483,7 @@ static void mmc_sd_detect(struct mmc_host *host)
 
         mmc_release_host(host);
 
-        if (err != MMC_ERR_NONE) {
+        if (err) {
                 mmc_sd_remove(host);
 
                 mmc_claim_host(host);
@@ -574,7 +574,7 @@ static void mmc_sd_resume(struct mmc_host *host)
         err = mmc_sd_init_card(host, host->ocr, host->card);
         mmc_release_host(host);
 
-        if (err != MMC_ERR_NONE) {
+        if (err) {
                 mmc_sd_remove(host);
 
                 mmc_claim_host(host);
@@ -644,7 +644,7 @@ int mmc_attach_sd(struct mmc_host *host, u32 ocr)
          * Detect and init the card.
          */
         err = mmc_sd_init_card(host, host->ocr, NULL);
-        if (err != MMC_ERR_NONE)
+        if (err)
                 goto err;
 
         mmc_release_host(host);
diff --git a/drivers/mmc/core/sd_ops.c b/drivers/mmc/core/sd_ops.c
index 342f340ebc25..b4d43bd0fedd 100644
--- a/drivers/mmc/core/sd_ops.c
+++ b/drivers/mmc/core/sd_ops.c
@@ -40,14 +40,14 @@ static int mmc_app_cmd(struct mmc_host *host, struct mmc_card *card)
         }
 
         err = mmc_wait_for_cmd(host, &cmd, 0);
-        if (err != MMC_ERR_NONE)
+        if (err)
                 return err;
 
         /* Check that card supported application commands */
         if (!(cmd.resp[0] & R1_APP_CMD))
-                return MMC_ERR_FAILED;
+                return -EOPNOTSUPP;
 
-        return MMC_ERR_NONE;
+        return 0;
 }
 
 /**
@@ -73,7 +73,7 @@ int mmc_wait_for_app_cmd(struct mmc_host *host, struct mmc_card *card,
         BUG_ON(!cmd);
         BUG_ON(retries < 0);
 
-        err = MMC_ERR_INVALID;
+        err = -EIO;
 
         /*
          * We have to resend MMC_APP_CMD for each attempt so
@@ -83,7 +83,7 @@ int mmc_wait_for_app_cmd(struct mmc_host *host, struct mmc_card *card,
                 memset(&mrq, 0, sizeof(struct mmc_request));
 
                 err = mmc_app_cmd(host, card);
-                if (err != MMC_ERR_NONE)
+                if (err)
                         continue;
 
                 memset(&mrq, 0, sizeof(struct mmc_request));
@@ -97,7 +97,7 @@ int mmc_wait_for_app_cmd(struct mmc_host *host, struct mmc_card *card,
                 mmc_wait_for_req(host, &mrq);
 
                 err = cmd->error;
-                if (cmd->error == MMC_ERR_NONE)
+                if (!cmd->error)
                         break;
         }
 
@@ -127,14 +127,14 @@ int mmc_app_set_bus_width(struct mmc_card *card, int width)
                 cmd.arg = SD_BUS_WIDTH_4;
                 break;
         default:
-                return MMC_ERR_INVALID;
+                return -EINVAL;
         }
 
         err = mmc_wait_for_app_cmd(card->host, card, &cmd, MMC_CMD_RETRIES);
-        if (err != MMC_ERR_NONE)
+        if (err)
                 return err;
 
-        return MMC_ERR_NONE;
+        return 0;
 }
 
 int mmc_send_app_op_cond(struct mmc_host *host, u32 ocr, u32 *rocr)
@@ -152,13 +152,13 @@ int mmc_send_app_op_cond(struct mmc_host *host, u32 ocr, u32 *rocr)
 
         for (i = 100; i; i--) {
                 err = mmc_wait_for_app_cmd(host, NULL, &cmd, MMC_CMD_RETRIES);
-                if (err != MMC_ERR_NONE)
+                if (err)
                         break;
 
                 if (cmd.resp[0] & MMC_CARD_BUSY || ocr == 0)
                         break;
 
-                err = MMC_ERR_TIMEOUT;
+                err = -ETIMEDOUT;
 
                 mmc_delay(10);
         }
@@ -185,13 +185,13 @@ int mmc_send_if_cond(struct mmc_host *host, u32 ocr)
         cmd.flags = MMC_RSP_R7 | MMC_CMD_BCR;
 
         err = mmc_wait_for_cmd(host, &cmd, 0);
-        if (err != MMC_ERR_NONE)
+        if (err)
                 return err;
 
         if ((cmd.resp[0] & 0xFF) != test_pattern)
-                return MMC_ERR_FAILED;
+                return -EIO;
 
-        return MMC_ERR_NONE;
+        return 0;
 }
 
 int mmc_send_relative_addr(struct mmc_host *host, unsigned int *rca)
@@ -209,12 +209,12 @@ int mmc_send_relative_addr(struct mmc_host *host, unsigned int *rca)
         cmd.flags = MMC_RSP_R6 | MMC_CMD_BCR;
 
         err = mmc_wait_for_cmd(host, &cmd, MMC_CMD_RETRIES);
-        if (err != MMC_ERR_NONE)
+        if (err)
                 return err;
 
         *rca = cmd.resp[0] >> 16;
 
-        return MMC_ERR_NONE;
+        return 0;
 }
 
 int mmc_app_send_scr(struct mmc_card *card, u32 *scr)
@@ -230,7 +230,7 @@ int mmc_app_send_scr(struct mmc_card *card, u32 *scr)
         BUG_ON(!scr);
 
         err = mmc_app_cmd(card->host, card);
-        if (err != MMC_ERR_NONE)
+        if (err)
                 return err;
 
         memset(&mrq, 0, sizeof(struct mmc_request));
@@ -256,15 +256,15 @@ int mmc_app_send_scr(struct mmc_card *card, u32 *scr)
 
         mmc_wait_for_req(card->host, &mrq);
 
-        if (cmd.error != MMC_ERR_NONE)
+        if (cmd.error)
                 return cmd.error;
-        if (data.error != MMC_ERR_NONE)
+        if (data.error)
                 return data.error;
 
         scr[0] = ntohl(scr[0]);
         scr[1] = ntohl(scr[1]);
 
-        return MMC_ERR_NONE;
+        return 0;
 }
 
 int mmc_sd_switch(struct mmc_card *card, int mode, int group,
@@ -306,11 +306,11 @@ int mmc_sd_switch(struct mmc_card *card, int mode, int group,
 
         mmc_wait_for_req(card->host, &mrq);
 
-        if (cmd.error != MMC_ERR_NONE)
+        if (cmd.error)
                 return cmd.error;
-        if (data.error != MMC_ERR_NONE)
+        if (data.error)
                 return data.error;
 
-        return MMC_ERR_NONE;
+        return 0;
 }
 
diff --git a/drivers/mmc/host/at91_mci.c b/drivers/mmc/host/at91_mci.c
index 955ea60583b5..810a433ce532 100644
--- a/drivers/mmc/host/at91_mci.c
+++ b/drivers/mmc/host/at91_mci.c
@@ -577,24 +577,22 @@ static void at91_mci_completed_command(struct at91mci_host *host)
                         AT91_MCI_RENDE | AT91_MCI_RTOE | AT91_MCI_DCRCE |
                         AT91_MCI_DTOE | AT91_MCI_OVRE | AT91_MCI_UNRE)) {
                 if ((status & AT91_MCI_RCRCE) && !(mmc_resp_type(cmd) & MMC_RSP_CRC)) {
-                        cmd->error = MMC_ERR_NONE;
+                        cmd->error = 0;
                 }
                 else {
                         if (status & (AT91_MCI_RTOE | AT91_MCI_DTOE))
-                                cmd->error = MMC_ERR_TIMEOUT;
+                                cmd->error = -ETIMEDOUT;
                         else if (status & (AT91_MCI_RCRCE | AT91_MCI_DCRCE))
-                                cmd->error = MMC_ERR_BADCRC;
-                        else if (status & (AT91_MCI_OVRE | AT91_MCI_UNRE))
-                                cmd->error = MMC_ERR_FIFO;
+                                cmd->error = -EILSEQ;
                         else
-                                cmd->error = MMC_ERR_FAILED;
+                                cmd->error = -EIO;
 
                         pr_debug("Error detected and set to %d (cmd = %d, retries = %d)\n",
                                  cmd->error, cmd->opcode, cmd->retries);
                 }
         }
         else
-                cmd->error = MMC_ERR_NONE;
+                cmd->error = 0;
 
         at91_mci_process_next(host);
 }
diff --git a/drivers/mmc/host/au1xmmc.c b/drivers/mmc/host/au1xmmc.c
index 34c99d4ea041..49b0367e57c8 100644
--- a/drivers/mmc/host/au1xmmc.c
+++ b/drivers/mmc/host/au1xmmc.c
@@ -208,7 +208,7 @@ static int au1xmmc_send_command(struct au1xmmc_host *host, int wait,
         default:
                 printk(KERN_INFO "au1xmmc: unhandled response type %02x\n",
                         mmc_resp_type(cmd));
-                return MMC_ERR_INVALID;
+                return -EINVAL;
         }
 
         if (flags & MMC_DATA_READ) {
@@ -253,7 +253,7 @@ static int au1xmmc_send_command(struct au1xmmc_host *host, int wait,
                 IRQ_ON(host, SD_CONFIG_CR);
         }
 
-        return MMC_ERR_NONE;
+        return 0;
 }
 
 static void au1xmmc_data_complete(struct au1xmmc_host *host, u32 status)
@@ -278,7 +278,7 @@ static void au1xmmc_data_complete(struct au1xmmc_host *host, u32 status)
         while((host->flags & HOST_F_XMIT) && (status & SD_STATUS_DB))
                 status = au_readl(HOST_STATUS(host));
 
-        data->error = MMC_ERR_NONE;
+        data->error = 0;
         dma_unmap_sg(mmc_dev(host->mmc), data->sg, data->sg_len, host->dma.dir);
 
         /* Process any errors */
@@ -288,14 +288,14 @@ static void au1xmmc_data_complete(struct au1xmmc_host *host, u32 status)
                 crc |= ((status & 0x07) == 0x02) ? 0 : 1;
 
         if (crc)
-                data->error = MMC_ERR_BADCRC;
+                data->error = -EILSEQ;
 
         /* Clear the CRC bits */
         au_writel(SD_STATUS_WC | SD_STATUS_RC, HOST_STATUS(host));
 
         data->bytes_xfered = 0;
 
-        if (data->error == MMC_ERR_NONE) {
+        if (!data->error) {
                 if (host->flags & HOST_F_DMA) {
                         u32 chan = DMA_CHANNEL(host);
 
@@ -475,7 +475,7 @@ static void au1xmmc_cmd_complete(struct au1xmmc_host *host, u32 status)
                 return;
 
         cmd = mrq->cmd;
-        cmd->error = MMC_ERR_NONE;
+        cmd->error = 0;
 
         if (cmd->flags & MMC_RSP_PRESENT) {
                 if (cmd->flags & MMC_RSP_136) {
@@ -512,11 +512,11 @@ static void au1xmmc_cmd_complete(struct au1xmmc_host *host, u32 status)
         /* Figure out errors */
 
         if (status & (SD_STATUS_SC | SD_STATUS_WC | SD_STATUS_RC))
-                cmd->error = MMC_ERR_BADCRC;
+                cmd->error = -EILSEQ;
 
         trans = host->flags & (HOST_F_XMIT | HOST_F_RECV);
 
-        if (!trans || cmd->error != MMC_ERR_NONE) {
+        if (!trans || cmd->error) {
 
                 IRQ_OFF(host, SD_CONFIG_TH | SD_CONFIG_RA|SD_CONFIG_RF);
                 tasklet_schedule(&host->finish_task);
@@ -589,7 +589,7 @@ au1xmmc_prepare_data(struct au1xmmc_host *host, struct mmc_data *data)
                                    data->sg_len, host->dma.dir);
 
         if (host->dma.len == 0)
-                return MMC_ERR_TIMEOUT;
+                return -ETIMEDOUT;
 
         au_writel(data->blksz - 1, HOST_BLKSIZE(host));
 
@@ -640,11 +640,11 @@ au1xmmc_prepare_data(struct au1xmmc_host *host, struct mmc_data *data)
                         //IRQ_ON(host, SD_CONFIG_RA|SD_CONFIG_RF);
         }
 
-        return MMC_ERR_NONE;
+        return 0;
 
  dataerr:
         dma_unmap_sg(mmc_dev(host->mmc),data->sg,data->sg_len,host->dma.dir);
-        return MMC_ERR_TIMEOUT;
+        return -ETIMEDOUT;
 }
 
 /* static void au1xmmc_request
@@ -656,7 +656,7 @@ static void au1xmmc_request(struct mmc_host* mmc, struct mmc_request* mrq)
 
         struct au1xmmc_host *host = mmc_priv(mmc);
         unsigned int flags = 0;
-        int ret = MMC_ERR_NONE;
+        int ret = 0;
 
         WARN_ON(irqs_disabled());
         WARN_ON(host->status != HOST_S_IDLE);
@@ -672,10 +672,10 @@ static void au1xmmc_request(struct mmc_host* mmc, struct mmc_request* mrq)
                 ret = au1xmmc_prepare_data(host, mrq->data);
         }
 
-        if (ret == MMC_ERR_NONE)
+        if (!ret)
                 ret = au1xmmc_send_command(host, 0, mrq->cmd, flags);
 
-        if (ret != MMC_ERR_NONE) {
+        if (ret) {
                 mrq->cmd->error = ret;
                 au1xmmc_finish_request(host);
         }
@@ -764,10 +764,10 @@ static irqreturn_t au1xmmc_irq(int irq, void *dev_id)
 
                 if (host->mrq && (status & STATUS_TIMEOUT)) {
                         if (status & SD_STATUS_RAT)
-                                host->mrq->cmd->error = MMC_ERR_TIMEOUT;
+                                host->mrq->cmd->error = -ETIMEDOUT;
 
                         else if (status & SD_STATUS_DT)
-                                host->mrq->data->error = MMC_ERR_TIMEOUT;
+                                host->mrq->data->error = -ETIMEDOUT;
 
                         /* In PIO mode, interrupts might still be enabled */
                         IRQ_OFF(host, SD_CONFIG_NE | SD_CONFIG_TH);
diff --git a/drivers/mmc/host/imxmmc.c b/drivers/mmc/host/imxmmc.c
index 54bfc9f25596..04458c342812 100644
--- a/drivers/mmc/host/imxmmc.c
+++ b/drivers/mmc/host/imxmmc.c
@@ -428,11 +428,11 @@ static int imxmci_finish_data(struct imxmci_host *host, unsigned int stat)
         if ( stat & STATUS_ERR_MASK ) {
                 dev_dbg(mmc_dev(host->mmc), "request failed. status: 0x%08x\n",stat);
                 if(stat & (STATUS_CRC_READ_ERR | STATUS_CRC_WRITE_ERR))
-                        data->error = MMC_ERR_BADCRC;
+                        data->error = -EILSEQ;
                 else if(stat & STATUS_TIME_OUT_READ)
-                        data->error = MMC_ERR_TIMEOUT;
+                        data->error = -ETIMEDOUT;
                 else
-                        data->error = MMC_ERR_FAILED;
+                        data->error = -EIO;
         } else {
                 data->bytes_xfered = host->dma_size;
         }
@@ -458,10 +458,10 @@ static int imxmci_cmd_done(struct imxmci_host *host, unsigned int stat)
 
         if (stat & STATUS_TIME_OUT_RESP) {
                 dev_dbg(mmc_dev(host->mmc), "CMD TIMEOUT\n");
-                cmd->error = MMC_ERR_TIMEOUT;
+                cmd->error = -ETIMEDOUT;
         } else if (stat & STATUS_RESP_CRC_ERR && cmd->flags & MMC_RSP_CRC) {
                 dev_dbg(mmc_dev(host->mmc), "cmd crc error\n");
-                cmd->error = MMC_ERR_BADCRC;
+                cmd->error = -EILSEQ;
         }
 
         if(cmd->flags & MMC_RSP_PRESENT) {
@@ -482,7 +482,7 @@ static int imxmci_cmd_done(struct imxmci_host *host, unsigned int stat)
         dev_dbg(mmc_dev(host->mmc), "RESP 0x%08x, 0x%08x, 0x%08x, 0x%08x, error %d\n",
                 cmd->resp[0], cmd->resp[1], cmd->resp[2], cmd->resp[3], cmd->error);
 
-        if (data && (cmd->error == MMC_ERR_NONE) && !(stat & STATUS_ERR_MASK)) {
+        if (data && !cmd->error && !(stat & STATUS_ERR_MASK)) {
                 if (host->req->data->flags & MMC_DATA_WRITE) {
 
                         /* Wait for FIFO to be empty before starting DMA write */
@@ -491,7 +491,7 @@ static int imxmci_cmd_done(struct imxmci_host *host, unsigned int stat)
                         if(imxmci_busy_wait_for_status(host, &stat,
                                 STATUS_APPL_BUFF_FE,
                                 40, "imxmci_cmd_done DMA WR") < 0) {
-                                cmd->error = MMC_ERR_FIFO;
+                                cmd->error = -EIO;
                                 imxmci_finish_data(host, stat);
                                 if(host->req)
                                         imxmci_finish_request(host, host->req);
diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c
index be730c0a0352..d53e9a8bdaa2 100644
--- a/drivers/mmc/host/mmci.c
+++ b/drivers/mmc/host/mmci.c
@@ -154,11 +154,11 @@ mmci_data_irq(struct mmci_host *host, struct mmc_data *data,
         }
         if (status & (MCI_DATACRCFAIL|MCI_DATATIMEOUT|MCI_TXUNDERRUN|MCI_RXOVERRUN)) {
                 if (status & MCI_DATACRCFAIL)
-                        data->error = MMC_ERR_BADCRC;
+                        data->error = -EILSEQ;
                 else if (status & MCI_DATATIMEOUT)
-                        data->error = MMC_ERR_TIMEOUT;
+                        data->error = -ETIMEDOUT;
                 else if (status & (MCI_TXUNDERRUN|MCI_RXOVERRUN))
-                        data->error = MMC_ERR_FIFO;
+                        data->error = -EIO;
                 status |= MCI_DATAEND;
 
                 /*
@@ -193,12 +193,12 @@ mmci_cmd_irq(struct mmci_host *host, struct mmc_command *cmd,
         cmd->resp[3] = readl(base + MMCIRESPONSE3);
 
         if (status & MCI_CMDTIMEOUT) {
-                cmd->error = MMC_ERR_TIMEOUT;
+                cmd->error = -ETIMEDOUT;
         } else if (status & MCI_CMDCRCFAIL && cmd->flags & MMC_RSP_CRC) {
-                cmd->error = MMC_ERR_BADCRC;
+                cmd->error = -EILSEQ;
         }
 
-        if (!cmd->data || cmd->error != MMC_ERR_NONE) {
+        if (!cmd->data || cmd->error) {
                 if (host->data)
                         mmci_stop_data(host);
                 mmci_request_end(host, cmd->mrq);
diff --git a/drivers/mmc/host/omap.c b/drivers/mmc/host/omap.c
index 0cf97edc5f58..60a67dfcda6a 100644
--- a/drivers/mmc/host/omap.c
+++ b/drivers/mmc/host/omap.c
@@ -263,7 +263,7 @@ mmc_omap_xfer_done(struct mmc_omap_host *host, struct mmc_data *data)
                 enum dma_data_direction dma_data_dir;
 
                 BUG_ON(host->dma_ch < 0);
-                if (data->error != MMC_ERR_NONE)
+                if (data->error)
                         omap_stop_dma(host->dma_ch);
                 /* Release DMA channel lazily */
                 mod_timer(&host->dma_timer, jiffies + HZ);
@@ -368,7 +368,7 @@ mmc_omap_cmd_done(struct mmc_omap_host *host, struct mmc_command *cmd)
                 }
         }
 
-        if (host->data == NULL || cmd->error != MMC_ERR_NONE) {
+        if (host->data == NULL || cmd->error) {
                 host->mrq = NULL;
                 clk_disable(host->fclk);
                 mmc_request_done(host->mmc, cmd->mrq);
@@ -475,14 +475,14 @@ static irqreturn_t mmc_omap_irq(int irq, void *dev_id)
                 if (status & OMAP_MMC_STAT_DATA_TOUT) {
                         dev_dbg(mmc_dev(host->mmc), "data timeout\n");
                         if (host->data) {
-                                host->data->error |= MMC_ERR_TIMEOUT;
+                                host->data->error = -ETIMEDOUT;
                                 transfer_error = 1;
                         }
                 }
 
                 if (status & OMAP_MMC_STAT_DATA_CRC) {
                         if (host->data) {
-                                host->data->error |= MMC_ERR_BADCRC;
+                                host->data->error = -EILSEQ;
                                 dev_dbg(mmc_dev(host->mmc),
                                          "data CRC error, bytes left %d\n",
                                         host->total_bytes_left);
@@ -504,7 +504,7 @@ static irqreturn_t mmc_omap_irq(int irq, void *dev_id)
                                         dev_err(mmc_dev(host->mmc),
                                                 "command timeout, CMD %d\n",
                                                 host->cmd->opcode);
-                                host->cmd->error = MMC_ERR_TIMEOUT;
+                                host->cmd->error = -ETIMEDOUT;
                                 end_command = 1;
                         }
                 }
@@ -514,7 +514,7 @@ static irqreturn_t mmc_omap_irq(int irq, void *dev_id)
                                 dev_err(mmc_dev(host->mmc),
                                         "command CRC error (CMD%d, arg 0x%08x)\n",
                                         host->cmd->opcode, host->cmd->arg);
-                                host->cmd->error = MMC_ERR_BADCRC;
+                                host->cmd->error = -EILSEQ;
                                 end_command = 1;
                         } else
                                 dev_err(mmc_dev(host->mmc),
diff --git a/drivers/mmc/host/pxamci.c b/drivers/mmc/host/pxamci.c
index ff960334b337..b89e32d1e9b5 100644
--- a/drivers/mmc/host/pxamci.c
+++ b/drivers/mmc/host/pxamci.c
@@ -226,7 +226,7 @@ static int pxamci_cmd_done(struct pxamci_host *host, unsigned int stat)
         }
 
         if (stat & STAT_TIME_OUT_RESPONSE) {
-                cmd->error = MMC_ERR_TIMEOUT;
+                cmd->error = -ETIMEDOUT;
         } else if (stat & STAT_RES_CRC_ERR && cmd->flags & MMC_RSP_CRC) {
 #ifdef CONFIG_PXA27x
                 /*
@@ -239,11 +239,11 @@ static int pxamci_cmd_done(struct pxamci_host *host, unsigned int stat)
                         pr_debug("ignoring CRC from command %d - *risky*\n", cmd->opcode);
                 } else
 #endif
-                cmd->error = MMC_ERR_BADCRC;
+                cmd->error = -EILSEQ;
         }
 
         pxamci_disable_irq(host, END_CMD_RES);
-        if (host->data && cmd->error == MMC_ERR_NONE) {
+        if (host->data && !cmd->error) {
                 pxamci_enable_irq(host, DATA_TRAN_DONE);
         } else {
                 pxamci_finish_request(host, host->mrq);
@@ -264,9 +264,9 @@ static int pxamci_data_done(struct pxamci_host *host, unsigned int stat)
                      host->dma_dir);
 
         if (stat & STAT_READ_TIME_OUT)
-                data->error = MMC_ERR_TIMEOUT;
+                data->error = -ETIMEDOUT;
         else if (stat & (STAT_CRC_READ_ERROR|STAT_CRC_WRITE_ERROR))
-                data->error = MMC_ERR_BADCRC;
+                data->error = -EILSEQ;
 
         /*
          * There appears to be a hardware design bug here.  There seems to
@@ -274,7 +274,7 @@ static int pxamci_data_done(struct pxamci_host *host, unsigned int stat)
          * This means that if there was an error on any block, we mark all
          * data blocks as being in error.
          */
-        if (data->error == MMC_ERR_NONE)
+        if (!data->error)
                 data->bytes_xfered = data->blocks * data->blksz;
         else
                 data->bytes_xfered = 0;
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index 20a7d89e01ba..479d6a265dd1 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -481,16 +481,16 @@ static void sdhci_finish_data(struct sdhci_host *host)
          * Controller doesn't count down when in single block mode.
          */
         if (data->blocks == 1)
-                blocks = (data->error == MMC_ERR_NONE) ? 0 : 1;
+                blocks = (data->error == 0) ? 0 : 1;
         else
                 blocks = readw(host->ioaddr + SDHCI_BLOCK_COUNT);
         data->bytes_xfered = data->blksz * (data->blocks - blocks);
 
-        if ((data->error == MMC_ERR_NONE) && blocks) {
+        if (!data->error && blocks) {
                 printk(KERN_ERR "%s: Controller signalled completion even "
                         "though there were blocks left.\n",
                         mmc_hostname(host->mmc));
-                data->error = MMC_ERR_FAILED;
+                data->error = -EIO;
         }
 
         if (data->stop) {
@@ -498,7 +498,7 @@ static void sdhci_finish_data(struct sdhci_host *host)
                  * The controller needs a reset of internal state machines
                  * upon error conditions.
                  */
-                if (data->error != MMC_ERR_NONE) {
+                if (data->error) {
                         sdhci_reset(host, SDHCI_RESET_CMD);
                         sdhci_reset(host, SDHCI_RESET_DATA);
                 }
@@ -533,7 +533,7 @@ static void sdhci_send_command(struct sdhci_host *host, struct mmc_command *cmd)
                         printk(KERN_ERR "%s: Controller never released "
                                 "inhibit bit(s).\n", mmc_hostname(host->mmc));
                         sdhci_dumpregs(host);
-                        cmd->error = MMC_ERR_FAILED;
+                        cmd->error = -EIO;
                         tasklet_schedule(&host->finish_tasklet);
                         return;
                 }
@@ -554,7 +554,7 @@ static void sdhci_send_command(struct sdhci_host *host, struct mmc_command *cmd)
         if ((cmd->flags & MMC_RSP_136) && (cmd->flags & MMC_RSP_BUSY)) {
                 printk(KERN_ERR "%s: Unsupported response type!\n",
                         mmc_hostname(host->mmc));
-                cmd->error = MMC_ERR_INVALID;
+                cmd->error = -EINVAL;
                 tasklet_schedule(&host->finish_tasklet);
                 return;
         }
@@ -601,7 +601,7 @@ static void sdhci_finish_command(struct sdhci_host *host)
                 }
         }
 
-        host->cmd->error = MMC_ERR_NONE;
+        host->cmd->error = 0;
 
         if (host->data && host->data_early)
                 sdhci_finish_data(host);
@@ -722,7 +722,7 @@ static void sdhci_request(struct mmc_host *mmc, struct mmc_request *mrq)
         host->mrq = mrq;
 
         if (!(readl(host->ioaddr + SDHCI_PRESENT_STATE) & SDHCI_CARD_PRESENT)) {
-                host->mrq->cmd->error = MMC_ERR_TIMEOUT;
+                host->mrq->cmd->error = -ENOMEDIUM;
                 tasklet_schedule(&host->finish_tasklet);
         } else
                 sdhci_send_command(host, mrq->cmd);
@@ -831,7 +831,7 @@ static void sdhci_tasklet_card(unsigned long param)
                         sdhci_reset(host, SDHCI_RESET_CMD);
                         sdhci_reset(host, SDHCI_RESET_DATA);
 
-                        host->mrq->cmd->error = MMC_ERR_FAILED;
+                        host->mrq->cmd->error = -ENOMEDIUM;
                         tasklet_schedule(&host->finish_tasklet);
                 }
         }
@@ -859,9 +859,9 @@ static void sdhci_tasklet_finish(unsigned long param)
          * The controller needs a reset of internal state machines
          * upon error conditions.
          */
-        if ((mrq->cmd->error != MMC_ERR_NONE) ||
-                (mrq->data && ((mrq->data->error != MMC_ERR_NONE) ||
-                (mrq->data->stop && (mrq->data->stop->error != MMC_ERR_NONE))))) {
+        if (mrq->cmd->error ||
+                (mrq->data && (mrq->data->error ||
+                (mrq->data->stop && mrq->data->stop->error)))) {
 
                 /* Some controllers need this kick or reset won't work here */
                 if (host->chip->quirks & SDHCI_QUIRK_CLOCK_BEFORE_RESET) {
@@ -906,13 +906,13 @@ static void sdhci_timeout_timer(unsigned long data)
                 sdhci_dumpregs(host);
 
                 if (host->data) {
-                        host->data->error = MMC_ERR_TIMEOUT;
+                        host->data->error = -ETIMEDOUT;
                         sdhci_finish_data(host);
                 } else {
                         if (host->cmd)
-                                host->cmd->error = MMC_ERR_TIMEOUT;
+                                host->cmd->error = -ETIMEDOUT;
                         else
-                                host->mrq->cmd->error = MMC_ERR_TIMEOUT;
+                                host->mrq->cmd->error = -ETIMEDOUT;
 
                         tasklet_schedule(&host->finish_tasklet);
                 }
@@ -941,13 +941,12 @@ static void sdhci_cmd_irq(struct sdhci_host *host, u32 intmask)
         }
 
         if (intmask & SDHCI_INT_TIMEOUT)
-                host->cmd->error = MMC_ERR_TIMEOUT;
-        else if (intmask & SDHCI_INT_CRC)
-                host->cmd->error = MMC_ERR_BADCRC;
-        else if (intmask & (SDHCI_INT_END_BIT | SDHCI_INT_INDEX))
-                host->cmd->error = MMC_ERR_FAILED;
+                host->cmd->error = -ETIMEDOUT;
+        else if (intmask & (SDHCI_INT_CRC | SDHCI_INT_END_BIT |
+                        SDHCI_INT_INDEX))
+                host->cmd->error = -EILSEQ;
 
-        if (host->cmd->error != MMC_ERR_NONE)
+        if (host->cmd->error)
                 tasklet_schedule(&host->finish_tasklet);
         else if (intmask & SDHCI_INT_RESPONSE)
                 sdhci_finish_command(host);
@@ -974,13 +973,11 @@ static void sdhci_data_irq(struct sdhci_host *host, u32 intmask)
         }
 
         if (intmask & SDHCI_INT_DATA_TIMEOUT)
-                host->data->error = MMC_ERR_TIMEOUT;
-        else if (intmask & SDHCI_INT_DATA_CRC)
-                host->data->error = MMC_ERR_BADCRC;
-        else if (intmask & SDHCI_INT_DATA_END_BIT)
-                host->data->error = MMC_ERR_FAILED;
+                host->data->error = -ETIMEDOUT;
+        else if (intmask & (SDHCI_INT_DATA_CRC | SDHCI_INT_DATA_END_BIT))
+                host->data->error = -EILSEQ;
 
-        if (host->data->error != MMC_ERR_NONE)
+        if (host->data->error)
                 sdhci_finish_data(host);
         else {
                 if (intmask & (SDHCI_INT_DATA_AVAIL | SDHCI_INT_SPACE_AVAIL))
diff --git a/drivers/mmc/host/tifm_sd.c b/drivers/mmc/host/tifm_sd.c
index 8b736e968447..b4a56e5e5132 100644
--- a/drivers/mmc/host/tifm_sd.c
+++ b/drivers/mmc/host/tifm_sd.c
@@ -404,14 +404,14 @@ static void tifm_sd_check_status(struct tifm_sd *host)
         struct tifm_dev *sock = host->dev;
         struct mmc_command *cmd = host->req->cmd;
 
-        if (cmd->error != MMC_ERR_NONE)
+        if (cmd->error)
                 goto finish_request;
 
         if (!(host->cmd_flags & CMD_READY))
                 return;
 
         if (cmd->data) {
-                if (cmd->data->error != MMC_ERR_NONE) {
+                if (cmd->data->error) {
                         if ((host->cmd_flags & SCMD_ACTIVE)
                             && !(host->cmd_flags & SCMD_READY))
                                 return;
@@ -504,7 +504,7 @@ static void tifm_sd_card_event(struct tifm_dev *sock)
 {
         struct tifm_sd *host;
         unsigned int host_status = 0;
-        int cmd_error = MMC_ERR_NONE;
+        int cmd_error = 0;
         struct mmc_command *cmd = NULL;
         unsigned long flags;
 
@@ -521,15 +521,15 @@ static void tifm_sd_card_event(struct tifm_dev *sock)
                         writel(host_status & TIFM_MMCSD_ERRMASK,
                                sock->addr + SOCK_MMCSD_STATUS);
                         if (host_status & TIFM_MMCSD_CTO)
-                                cmd_error = MMC_ERR_TIMEOUT;
+                                cmd_error = -ETIMEDOUT;
                         else if (host_status & TIFM_MMCSD_CCRC)
-                                cmd_error = MMC_ERR_BADCRC;
+                                cmd_error = -EILSEQ;
 
                         if (cmd->data) {
                                 if (host_status & TIFM_MMCSD_DTO)
-                                        cmd->data->error = MMC_ERR_TIMEOUT;
+                                        cmd->data->error = -ETIMEDOUT;
                                 else if (host_status & TIFM_MMCSD_DCRC)
-                                        cmd->data->error = MMC_ERR_BADCRC;
+                                        cmd->data->error = -EILSEQ;
                         }
 
                         writel(TIFM_FIFO_INT_SETALL,
@@ -722,7 +722,7 @@ static void tifm_sd_request(struct mmc_host *mmc, struct mmc_request *mrq)
         return;
 
 err_out:
-        mrq->cmd->error = MMC_ERR_TIMEOUT;
+        mrq->cmd->error = -ETIMEDOUT;
         mmc_request_done(mmc, mrq);
 }
 
@@ -1012,9 +1012,9 @@ static void tifm_sd_remove(struct tifm_dev *sock)
                 writel(TIFM_FIFO_INT_SETALL,
                        sock->addr + SOCK_DMA_FIFO_INT_ENABLE_CLEAR);
                 writel(0, sock->addr + SOCK_DMA_FIFO_INT_ENABLE_SET);
-                host->req->cmd->error = MMC_ERR_TIMEOUT;
+                host->req->cmd->error = -ENOMEDIUM;
                 if (host->req->stop)
-                        host->req->stop->error = MMC_ERR_TIMEOUT;
+                        host->req->stop->error = -ENOMEDIUM;
                 tasklet_schedule(&host->finish_tasklet);
         }
         spin_unlock_irqrestore(&sock->lock, flags);
diff --git a/drivers/mmc/host/wbsd.c b/drivers/mmc/host/wbsd.c
index 9bf2a877113b..44968c2279e1 100644
--- a/drivers/mmc/host/wbsd.c
+++ b/drivers/mmc/host/wbsd.c
@@ -317,7 +317,7 @@ static inline void wbsd_get_short_reply(struct wbsd_host *host,
          * Correct response type?
          */
         if (wbsd_read_index(host, WBSD_IDX_RSPLEN) != WBSD_RSP_SHORT) {
-                cmd->error = MMC_ERR_INVALID;
+                cmd->error = -EILSEQ;
                 return;
         }
 
@@ -337,7 +337,7 @@ static inline void wbsd_get_long_reply(struct wbsd_host *host,
          * Correct response type?
          */
         if (wbsd_read_index(host, WBSD_IDX_RSPLEN) != WBSD_RSP_LONG) {
-                cmd->error = MMC_ERR_INVALID;
+                cmd->error = -EILSEQ;
                 return;
         }
 
@@ -372,7 +372,7 @@ static void wbsd_send_command(struct wbsd_host *host, struct mmc_command *cmd)
         for (i = 3; i >= 0; i--)
                 outb((cmd->arg >> (i * 8)) & 0xff, host->base + WBSD_CMDR);
 
-        cmd->error = MMC_ERR_NONE;
+        cmd->error = 0;
 
         /*
          * Wait for the request to complete.
@@ -392,13 +392,13 @@ static void wbsd_send_command(struct wbsd_host *host, struct mmc_command *cmd)
 
                 /* Card removed? */
                 if (isr & WBSD_INT_CARD)
-                        cmd->error = MMC_ERR_TIMEOUT;
+                        cmd->error = -ENOMEDIUM;
                 /* Timeout? */
                 else if (isr & WBSD_INT_TIMEOUT)
-                        cmd->error = MMC_ERR_TIMEOUT;
+                        cmd->error = -ETIMEDOUT;
                 /* CRC? */
                 else if ((cmd->flags & MMC_RSP_CRC) && (isr & WBSD_INT_CRC))
-                        cmd->error = MMC_ERR_BADCRC;
+                        cmd->error = -EILSEQ;
                 /* All ok */
                 else {
                         if (cmd->flags & MMC_RSP_136)
@@ -585,7 +585,7 @@ static void wbsd_prepare_data(struct wbsd_host *host, struct mmc_data *data)
                         ((blksize >> 4) & 0xF0) | WBSD_DATA_WIDTH);
                 wbsd_write_index(host, WBSD_IDX_PBSLSB, blksize & 0xFF);
         } else {
-                data->error = MMC_ERR_INVALID;
+                data->error = -EINVAL;
                 return;
         }
 
@@ -607,7 +607,7 @@ static void wbsd_prepare_data(struct wbsd_host *host, struct mmc_data *data)
                  */
                 BUG_ON(size > 0x10000);
                 if (size > 0x10000) {
-                        data->error = MMC_ERR_INVALID;
+                        data->error = -EINVAL;
                         return;
                 }
 
@@ -669,7 +669,7 @@ static void wbsd_prepare_data(struct wbsd_host *host, struct mmc_data *data)
                 }
         }
 
-        data->error = MMC_ERR_NONE;
+        data->error = 0;
 }
 
 static void wbsd_finish_data(struct wbsd_host *host, struct mmc_data *data)
@@ -724,8 +724,8 @@ static void wbsd_finish_data(struct wbsd_host *host, struct mmc_data *data)
                                 "%d bytes left.\n",
                                 mmc_hostname(host->mmc), count);
 
-                        if (data->error == MMC_ERR_NONE)
-                                data->error = MMC_ERR_FAILED;
+                        if (!data->error)
+                                data->error = -EIO;
                 } else {
                         /*
                          * Transfer data from DMA buffer to
@@ -735,7 +735,7 @@ static void wbsd_finish_data(struct wbsd_host *host, struct mmc_data *data)
                                 wbsd_dma_to_sg(host, data);
                 }
 
-                if (data->error != MMC_ERR_NONE) {
+                if (data->error) {
                         if (data->bytes_xfered)
                                 data->bytes_xfered -= data->blksz;
                 }
@@ -767,11 +767,10 @@ static void wbsd_request(struct mmc_host *mmc, struct mmc_request *mrq)
         host->mrq = mrq;
 
         /*
-         * If there is no card in the slot then
-         * timeout immediatly.
+         * Check that there is actually a card in the slot.
          */
         if (!(host->flags & WBSD_FCARD_PRESENT)) {
-                cmd->error = MMC_ERR_TIMEOUT;
+                cmd->error = -ENOMEDIUM;
                 goto done;
         }
 
@@ -807,7 +806,7 @@ static void wbsd_request(struct mmc_host *mmc, struct mmc_request *mrq)
                                 "supported by this controller.\n",
                                 mmc_hostname(host->mmc), cmd->opcode);
 #endif
-                        cmd->error = MMC_ERR_INVALID;
+                        cmd->error = -EINVAL;
 
                         goto done;
                 };
@@ -819,7 +818,7 @@ static void wbsd_request(struct mmc_host *mmc, struct mmc_request *mrq)
         if (cmd->data) {
                 wbsd_prepare_data(host, cmd->data);
 
-                if (cmd->data->error != MMC_ERR_NONE)
+                if (cmd->data->error)
                         goto done;
         }
 
@@ -830,7 +829,7 @@ static void wbsd_request(struct mmc_host *mmc, struct mmc_request *mrq)
          * will be finished after the data has
          * transfered.
          */
-        if (cmd->data && (cmd->error == MMC_ERR_NONE)) {
+        if (cmd->data && !cmd->error) {
                 /*
                  * Dirty fix for hardware bug.
                  */
@@ -1033,7 +1032,7 @@ static void wbsd_tasklet_card(unsigned long param)
                                 mmc_hostname(host->mmc));
                         wbsd_reset(host);
 
-                        host->mrq->cmd->error = MMC_ERR_FAILED;
+                        host->mrq->cmd->error = -ENOMEDIUM;
                         tasklet_schedule(&host->finish_tasklet);
                 }
 
@@ -1097,7 +1096,7 @@ static void wbsd_tasklet_crc(unsigned long param)
 
         DBGF("CRC error\n");
 
-        data->error = MMC_ERR_BADCRC;
+        data->error = -EILSEQ;
 
         tasklet_schedule(&host->finish_tasklet);
 
@@ -1121,7 +1120,7 @@ static void wbsd_tasklet_timeout(unsigned long param)
 
         DBGF("Timeout\n");
 
-        data->error = MMC_ERR_TIMEOUT;
+        data->error = -ETIMEDOUT;
 
         tasklet_schedule(&host->finish_tasklet);
 
diff --git a/include/linux/mmc/core.h b/include/linux/mmc/core.h
index 63a80ea61124..a2b79518f051 100644
--- a/include/linux/mmc/core.h
+++ b/include/linux/mmc/core.h
@@ -54,12 +54,19 @@ struct mmc_command {
         unsigned int            retries;        /* max number of retries */
         unsigned int            error;          /* command error */
 
-#define MMC_ERR_NONE    0
-#define MMC_ERR_TIMEOUT 1
-#define MMC_ERR_BADCRC  2
-#define MMC_ERR_FIFO    3
-#define MMC_ERR_FAILED  4
-#define MMC_ERR_INVALID 5
+/*
+ * Standard errno values are used for errors, but some have specific
+ * meaning in the MMC layer:
+ *
+ * ETIMEDOUT    Card took too long to respond
+ * EILSEQ       Basic format problem with the received or sent data
+ *              (e.g. CRC check failed, incorrect opcode in response
+ *              or bad end bit)
+ * EINVAL       Request cannot be performed because of restrictions
+ *              in hardware and/or the driver
+ * ENOMEDIUM    Host can determine that the slot is empty and is
+ *              actively failing requests
+ */
 
         struct mmc_data         *data;          /* data segment associated with cmd */
         struct mmc_request      *mrq;           /* associated request */