mmc: initialize struct mmc_request at declaration time

Converts from:
	struct mmc_request mrq;
	memset(&mrq, 0, sizeof(struct mmc_request));

to:
	struct mmc_request mrq = {0};

because it's shorter, as performant, and easier to work out whether
initialization has happened.

Signed-off-by: Chris Ball <cjb@laptop.org>

1 files changed, 4 insertions, 10 deletions

diff --git a/drivers/mmc/core/sd_ops.c b/drivers/mmc/core/sd_ops.c
index 8023f580b901..a206aea5360d 100644
--- a/drivers/mmc/core/sd_ops.c
+++ b/drivers/mmc/core/sd_ops.c
@@ -66,7 +66,7 @@ static int mmc_app_cmd(struct mmc_host *host, struct mmc_card *card)
 int mmc_wait_for_app_cmd(struct mmc_host *host, struct mmc_card *card,
         struct mmc_command *cmd, int retries)
 {
-        struct mmc_request mrq;
+        struct mmc_request mrq = {0};
 
         int i, err;
 
@@ -243,7 +243,7 @@ int mmc_send_relative_addr(struct mmc_host *host, unsigned int *rca)
 int mmc_app_send_scr(struct mmc_card *card, u32 *scr)
 {
         int err;
-        struct mmc_request mrq;
+        struct mmc_request mrq = {0};
         struct mmc_command cmd = {0};
         struct mmc_data data = {0};
         struct scatterlist sg;
@@ -266,8 +266,6 @@ int mmc_app_send_scr(struct mmc_card *card, u32 *scr)
         if (data_buf == NULL)
                 return -ENOMEM;
 
-        memset(&mrq, 0, sizeof(struct mmc_request));
-
         mrq.cmd = &cmd;
         mrq.data = &data;
 
@@ -304,7 +302,7 @@ int mmc_app_send_scr(struct mmc_card *card, u32 *scr)
 int mmc_sd_switch(struct mmc_card *card, int mode, int group,
         u8 value, u8 *resp)
 {
-        struct mmc_request mrq;
+        struct mmc_request mrq = {0};
         struct mmc_command cmd = {0};
         struct mmc_data data = {0};
         struct scatterlist sg;
@@ -317,8 +315,6 @@ int mmc_sd_switch(struct mmc_card *card, int mode, int group,
         mode = !!mode;
         value &= 0xF;
 
-        memset(&mrq, 0, sizeof(struct mmc_request));
-
         mrq.cmd = &cmd;
         mrq.data = &data;
 
@@ -351,7 +347,7 @@ int mmc_sd_switch(struct mmc_card *card, int mode, int group,
 int mmc_app_sd_status(struct mmc_card *card, void *ssr)
 {
         int err;
-        struct mmc_request mrq;
+        struct mmc_request mrq = {0};
         struct mmc_command cmd = {0};
         struct mmc_data data = {0};
         struct scatterlist sg;
@@ -366,8 +362,6 @@ int mmc_app_sd_status(struct mmc_card *card, void *ssr)
         if (err)
                 return err;
 
-        memset(&mrq, 0, sizeof(struct mmc_request));
-
         mrq.cmd = &cmd;
         mrq.data = &data;