Merge branch 'upstream'

11 files changed, 119 insertions, 73 deletions

diff --git a/drivers/scsi/ahci.c b/drivers/scsi/ahci.c
index 83467a05dc8e..887eaa2a3ebf 100644
--- a/drivers/scsi/ahci.c
+++ b/drivers/scsi/ahci.c
@@ -243,7 +243,7 @@ static const struct ata_port_operations ahci_ops = {
         .port_stop              = ahci_port_stop,
 };
 
-static struct ata_port_info ahci_port_info[] = {
+static const struct ata_port_info ahci_port_info[] = {
         /* board_ahci */
         {
                 .sht            = &ahci_sht,
@@ -643,7 +643,8 @@ static void ahci_eng_timeout(struct ata_port *ap)
                  * not being called from the SCSI EH.
                  */
                 qc->scsidone = scsi_finish_command;
-                ata_qc_complete(qc, AC_ERR_OTHER);
+                qc->err_mask |= AC_ERR_OTHER;
+                ata_qc_complete(qc);
         }
 
         spin_unlock_irqrestore(&host_set->lock, flags);
@@ -664,7 +665,8 @@ static inline int ahci_host_intr(struct ata_port *ap, struct ata_queued_cmd *qc)
         ci = readl(port_mmio + PORT_CMD_ISSUE);
         if (likely((ci & 0x1) == 0)) {
                 if (qc) {
-                        ata_qc_complete(qc, 0);
+                        assert(qc->err_mask == 0);
+                        ata_qc_complete(qc);
                         qc = NULL;
                 }
         }
@@ -681,8 +683,10 @@ static inline int ahci_host_intr(struct ata_port *ap, struct ata_queued_cmd *qc)
                 /* command processing has stopped due to error; restart */
                 ahci_restart_port(ap, status);
 
-                if (qc)
-                        ata_qc_complete(qc, err_mask);
+                if (qc) {
+                        qc->err_mask |= AC_ERR_OTHER;
+                        ata_qc_complete(qc);
+                }
         }
 
         return 1;
diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c
index f37cc01e8dbd..82f566cf75c6 100644
--- a/drivers/scsi/libata-core.c
+++ b/drivers/scsi/libata-core.c
@@ -606,7 +606,7 @@ void ata_rwcmd_protocol(struct ata_queued_cmd *qc)
         tf->command = ata_rw_cmds[index + lba48 + write];
 }
 
-static const char * xfer_mode_str[] = {
+static const char * const xfer_mode_str[] = {
         "UDMA/16",
         "UDMA/25",
         "UDMA/33",
@@ -1054,9 +1054,9 @@ static int ata_qc_wait_err(struct ata_queued_cmd *qc,
 
         if (wait_for_completion_timeout(wait, 30 * HZ) < 1) {
                 /* timeout handling */
-                unsigned int err_mask = ac_err_mask(ata_chk_status(qc->ap));
+                qc->err_mask |= ac_err_mask(ata_chk_status(qc->ap));
 
-                if (!err_mask) {
+                if (!qc->err_mask) {
                         printk(KERN_WARNING "ata%u: slow completion (cmd %x)\n",
                                qc->ap->id, qc->tf.command);
                 } else {
@@ -1065,7 +1065,7 @@ static int ata_qc_wait_err(struct ata_queued_cmd *qc,
                         rc = -EIO;
                 }
 
-                ata_qc_complete(qc, err_mask);
+                ata_qc_complete(qc);
         }
 
         return rc;
@@ -1176,6 +1176,7 @@ retry:
                                 qc->cursg_ofs = 0;
                                 qc->cursect = 0;
                                 qc->nsect = 1;
+                                qc->err_mask = 0;
                                 goto retry;
                         }
                 }
@@ -2093,7 +2094,7 @@ static void ata_pr_blacklisted(const struct ata_port *ap,
                 ap->id, dev->devno);
 }
 
-static const char * ata_dma_blacklist [] = {
+static const char * const ata_dma_blacklist [] = {
         "WDC AC11000H",
         "WDC AC22100H",
         "WDC AC32500H",
@@ -2787,14 +2788,14 @@ skip_map:
  *      None.  (grabs host lock)
  */
 
-void ata_poll_qc_complete(struct ata_queued_cmd *qc, unsigned int err_mask)
+void ata_poll_qc_complete(struct ata_queued_cmd *qc)
 {
         struct ata_port *ap = qc->ap;
         unsigned long flags;
 
         spin_lock_irqsave(&ap->host_set->lock, flags);
         ata_irq_on(ap);
-        ata_qc_complete(qc, err_mask);
+        ata_qc_complete(qc);
         spin_unlock_irqrestore(&ap->host_set->lock, flags);
 }
 
@@ -2811,10 +2812,14 @@ void ata_poll_qc_complete(struct ata_queued_cmd *qc, unsigned int err_mask)
 
 static unsigned long ata_pio_poll(struct ata_port *ap)
 {
+        struct ata_queued_cmd *qc;
         u8 status;
         unsigned int poll_state = HSM_ST_UNKNOWN;
         unsigned int reg_state = HSM_ST_UNKNOWN;
 
+        qc = ata_qc_from_tag(ap, ap->active_tag);
+        assert(qc != NULL);
+
         switch (ap->hsm_task_state) {
         case HSM_ST:
         case HSM_ST_POLL:
@@ -2834,6 +2839,7 @@ static unsigned long ata_pio_poll(struct ata_port *ap)
         status = ata_chk_status(ap);
         if (status & ATA_BUSY) {
                 if (time_after(jiffies, ap->pio_task_timeout)) {
+                        qc->err_mask |= AC_ERR_ATA_BUS;
                         ap->hsm_task_state = HSM_ST_TMOUT;
                         return 0;
                 }
@@ -2869,29 +2875,31 @@ static int ata_pio_complete (struct ata_port *ap)
          * msecs, then chk-status again.  If still busy, fall back to
          * HSM_ST_LAST_POLL state.
          */
-        drv_stat = ata_busy_wait(ap, ATA_BUSY | ATA_DRQ, 10);
-        if (drv_stat & (ATA_BUSY | ATA_DRQ)) {
+        drv_stat = ata_busy_wait(ap, ATA_BUSY, 10);
+        if (drv_stat & ATA_BUSY) {
                 msleep(2);
-                drv_stat = ata_busy_wait(ap, ATA_BUSY | ATA_DRQ, 10);
-                if (drv_stat & (ATA_BUSY | ATA_DRQ)) {
+                drv_stat = ata_busy_wait(ap, ATA_BUSY, 10);
+                if (drv_stat & ATA_BUSY) {
                         ap->hsm_task_state = HSM_ST_LAST_POLL;
                         ap->pio_task_timeout = jiffies + ATA_TMOUT_PIO;
                         return 1;
                 }
         }
 
+        qc = ata_qc_from_tag(ap, ap->active_tag);
+        assert(qc != NULL);
+
         drv_stat = ata_wait_idle(ap);
         if (!ata_ok(drv_stat)) {
+                qc->err_mask |= __ac_err_mask(drv_stat);
                 ap->hsm_task_state = HSM_ST_ERR;
                 return 1;
         }
 
-        qc = ata_qc_from_tag(ap, ap->active_tag);
-        assert(qc != NULL);
-
         ap->hsm_task_state = HSM_ST_IDLE;
 
-        ata_poll_qc_complete(qc, 0);
+        assert(qc->err_mask == 0);
+        ata_poll_qc_complete(qc);
 
         /* another command may start at this point */
 
@@ -3363,6 +3371,7 @@ static void atapi_pio_bytes(struct ata_queued_cmd *qc)
 err_out:
         printk(KERN_INFO "ata%u: dev %u: ATAPI check failed\n",
               ap->id, dev->devno);
+        qc->err_mask |= AC_ERR_ATA_BUS;
         ap->hsm_task_state = HSM_ST_ERR;
 }
 
@@ -3401,8 +3410,16 @@ static void ata_pio_block(struct ata_port *ap)
         qc = ata_qc_from_tag(ap, ap->active_tag);
         assert(qc != NULL);
 
+        /* check error */
+        if (status & (ATA_ERR | ATA_DF)) {
+                qc->err_mask |= AC_ERR_DEV;
+                ap->hsm_task_state = HSM_ST_ERR;
+                return;
+        }
+
+        /* transfer data if any */
         if (is_atapi_taskfile(&qc->tf)) {
-                /* no more data to transfer or unsupported ATAPI command */
+                /* DRQ=0 means no more data to transfer */
                 if ((status & ATA_DRQ) == 0) {
                         ap->hsm_task_state = HSM_ST_LAST;
                         return;
@@ -3412,6 +3429,7 @@ static void ata_pio_block(struct ata_port *ap)
         } else {
                 /* handle BSY=0, DRQ=0 as error */
                 if ((status & ATA_DRQ) == 0) {
+                        qc->err_mask |= AC_ERR_ATA_BUS;
                         ap->hsm_task_state = HSM_ST_ERR;
                         return;
                 }
@@ -3431,9 +3449,14 @@ static void ata_pio_error(struct ata_port *ap)
         qc = ata_qc_from_tag(ap, ap->active_tag);
         assert(qc != NULL);
 
+        /* make sure qc->err_mask is available to 
+         * know what's wrong and recover
+         */
+        assert(qc->err_mask);
+
         ap->hsm_task_state = HSM_ST_IDLE;
 
-        ata_poll_qc_complete(qc, AC_ERR_ATA_BUS);
+        ata_poll_qc_complete(qc);
 }
 
 static void ata_pio_task(void *_data)
@@ -3542,7 +3565,8 @@ static void ata_qc_timeout(struct ata_queued_cmd *qc)
                 ap->hsm_task_state = HSM_ST_IDLE;
 
                 /* complete taskfile transaction */
-                ata_qc_complete(qc, ac_err_mask(drv_stat));
+                qc->err_mask |= ac_err_mask(drv_stat);
+                ata_qc_complete(qc);
                 break;
         }
 
@@ -3641,7 +3665,7 @@ struct ata_queued_cmd *ata_qc_new_init(struct ata_port *ap,
         return qc;
 }
 
-int ata_qc_complete_noop(struct ata_queued_cmd *qc, unsigned int err_mask)
+int ata_qc_complete_noop(struct ata_queued_cmd *qc)
 {
         return 0;
 }
@@ -3700,7 +3724,7 @@ void ata_qc_free(struct ata_queued_cmd *qc)
  *      spin_lock_irqsave(host_set lock)
  */
 
-void ata_qc_complete(struct ata_queued_cmd *qc, unsigned int err_mask)
+void ata_qc_complete(struct ata_queued_cmd *qc)
 {
         int rc;
 
@@ -3717,7 +3741,7 @@ void ata_qc_complete(struct ata_queued_cmd *qc, unsigned int err_mask)
         qc->flags &= ~ATA_QCFLAG_ACTIVE;
 
         /* call completion callback */
-        rc = qc->complete_fn(qc, err_mask);
+        rc = qc->complete_fn(qc);
 
         /* if callback indicates not to complete command (non-zero),
          * return immediately
@@ -4303,7 +4327,8 @@ fsm_start:
                 ap->hsm_task_state = HSM_ST_IDLE;
 
                 /* complete taskfile transaction */
-                ata_qc_complete(qc, ac_err_mask(status));
+                qc->err_mask |= ac_err_mask(status);
+                ata_qc_complete(qc);
                 break;
 
         case HSM_ST_ERR:
diff --git a/drivers/scsi/libata-scsi.c b/drivers/scsi/libata-scsi.c
index 379e87089764..2aef41112c43 100644
--- a/drivers/scsi/libata-scsi.c
+++ b/drivers/scsi/libata-scsi.c
@@ -418,7 +418,7 @@ void ata_to_sense_error(unsigned id, u8 drv_stat, u8 drv_err, u8 *sk, u8 *asc,
         int i;
 
         /* Based on the 3ware driver translation table */
-        static unsigned char sense_table[][4] = {
+        static const unsigned char sense_table[][4] = {
                 /* BBD|ECC|ID|MAR */
                 {0xd1,          ABORTED_COMMAND, 0x00, 0x00},   // Device busy                  Aborted command
                 /* BBD|ECC|ID */
@@ -449,7 +449,7 @@ void ata_to_sense_error(unsigned id, u8 drv_stat, u8 drv_err, u8 *sk, u8 *asc,
                 {0x80,          MEDIUM_ERROR, 0x11, 0x04},      // Block marked bad               Medium error, unrecovered read error
                 {0xFF, 0xFF, 0xFF, 0xFF}, // END mark
         };
-        static unsigned char stat_table[][4] = {
+        static const unsigned char stat_table[][4] = {
                 /* Must be first because BUSY means no other bits valid */
                 {0x80,          ABORTED_COMMAND, 0x47, 0x00},   // Busy, fake parity for now
                 {0x20,          HARDWARE_ERROR,  0x00, 0x00},   // Device fault
@@ -1203,12 +1203,11 @@ nothing_to_do:
         return 1;
 }
 
-static int ata_scsi_qc_complete(struct ata_queued_cmd *qc,
-                                unsigned int err_mask)
+static int ata_scsi_qc_complete(struct ata_queued_cmd *qc)
 {
         struct scsi_cmnd *cmd = qc->scsicmd;
         u8 *cdb = cmd->cmnd;
-        int need_sense = (err_mask != 0);
+        int need_sense = (qc->err_mask != 0);
 
         /* For ATA pass thru (SAT) commands, generate a sense block if
          * user mandated it or if there's an error.  Note that if we
@@ -1532,7 +1531,7 @@ unsigned int ata_scsiop_inq_80(struct ata_scsi_args *args, u8 *rbuf,
         return 0;
 }
 
-static const char *inq_83_str = "Linux ATA-SCSI simulator";
+static const char * const inq_83_str = "Linux ATA-SCSI simulator";
 
 /**
  *      ata_scsiop_inq_83 - Simulate INQUIRY EVPD page 83, device identity
@@ -1955,9 +1954,9 @@ void ata_scsi_badcmd(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *), u8
         done(cmd);
 }
 
-static int atapi_sense_complete(struct ata_queued_cmd *qc,unsigned int err_mask)
+static int atapi_sense_complete(struct ata_queued_cmd *qc)
 {
-        if (err_mask && ((err_mask & AC_ERR_DEV) == 0))
+        if (qc->err_mask && ((qc->err_mask & AC_ERR_DEV) == 0))
                 /* FIXME: not quite right; we don't want the
                  * translation of taskfile registers into
                  * a sense descriptors, since that's only
@@ -2015,15 +2014,18 @@ static void atapi_request_sense(struct ata_queued_cmd *qc)
 
         qc->complete_fn = atapi_sense_complete;
 
-        if (ata_qc_issue(qc))
-                ata_qc_complete(qc, AC_ERR_OTHER);
+        if (ata_qc_issue(qc)) {
+                qc->err_mask |= AC_ERR_OTHER;
+                ata_qc_complete(qc);
+        }
 
         DPRINTK("EXIT\n");
 }
 
-static int atapi_qc_complete(struct ata_queued_cmd *qc, unsigned int err_mask)
+static int atapi_qc_complete(struct ata_queued_cmd *qc)
 {
         struct scsi_cmnd *cmd = qc->scsicmd;
+        unsigned int err_mask = qc->err_mask;
 
         VPRINTK("ENTER, err_mask 0x%X\n", err_mask);
 
diff --git a/drivers/scsi/libata.h b/drivers/scsi/libata.h
index 8ebaa694d18e..686255df76b8 100644
--- a/drivers/scsi/libata.h
+++ b/drivers/scsi/libata.h
@@ -39,7 +39,7 @@ struct ata_scsi_args {
 
 /* libata-core.c */
 extern int atapi_enabled;
-extern int ata_qc_complete_noop(struct ata_queued_cmd *qc, unsigned int err_mask);
+extern int ata_qc_complete_noop(struct ata_queued_cmd *qc);
 extern struct ata_queued_cmd *ata_qc_new_init(struct ata_port *ap,
                                       struct ata_device *dev);
 extern void ata_rwcmd_protocol(struct ata_queued_cmd *qc);
diff --git a/drivers/scsi/pdc_adma.c b/drivers/scsi/pdc_adma.c
index e254f1e1bb1c..4daede86f00a 100644
--- a/drivers/scsi/pdc_adma.c
+++ b/drivers/scsi/pdc_adma.c
@@ -464,14 +464,12 @@ static inline unsigned int adma_intr_pkt(struct ata_host_set *host_set)
                         continue;
                 qc = ata_qc_from_tag(ap, ap->active_tag);
                 if (qc && (!(qc->tf.flags & ATA_TFLAG_POLLING))) {
-                        unsigned int err_mask = 0;
-
                         if ((status & (aPERR | aPSD | aUIRQ)))
-                                err_mask = AC_ERR_OTHER;
+                                qc->err_mask |= AC_ERR_OTHER;
                         else if (pp->pkt[0] != cDONE)
-                                err_mask = AC_ERR_OTHER;
+                                qc->err_mask |= AC_ERR_OTHER;
 
-                        ata_qc_complete(qc, err_mask);
+                        ata_qc_complete(qc);
                 }
         }
         return handled;
@@ -501,7 +499,8 @@ static inline unsigned int adma_intr_mmio(struct ata_host_set *host_set)
                 
                                 /* complete taskfile transaction */
                                 pp->state = adma_state_idle;
-                                ata_qc_complete(qc, ac_err_mask(status));
+                                qc->err_mask |= ac_err_mask(status);
+                                ata_qc_complete(qc);
                                 handled = 1;
                         }
                 }
diff --git a/drivers/scsi/sata_mv.c b/drivers/scsi/sata_mv.c
index edd0afa852eb..ef148acb5eeb 100644
--- a/drivers/scsi/sata_mv.c
+++ b/drivers/scsi/sata_mv.c
@@ -431,7 +431,7 @@ static const struct ata_port_operations mv6_ops = {
         .host_stop              = mv_host_stop,
 };
 
-static struct ata_port_info mv_port_info[] = {
+static const struct ata_port_info mv_port_info[] = {
         {  /* chip_504x */
                 .sht            = &mv_sht,
                 .host_flags     = MV_COMMON_FLAGS,
@@ -1242,8 +1242,10 @@ static void mv_host_intr(struct ata_host_set *host_set, u32 relevant,
                                 VPRINTK("port %u IRQ found for qc, "
                                         "ata_status 0x%x\n", port,ata_status);
                                 /* mark qc status appropriately */
-                                if (!(qc->tf.flags & ATA_TFLAG_POLLING))
+                                if (!(qc->tf.flags & ATA_TFLAG_POLLING)) {
+                                        qc->err_mask |= err_mask;
                                         ata_qc_complete(qc, err_mask);
+                                }
                         }
                 }
         }
@@ -1864,7 +1866,8 @@ static void mv_eng_timeout(struct ata_port *ap)
                  */
                 spin_lock_irqsave(&ap->host_set->lock, flags);
                 qc->scsidone = scsi_finish_command;
-                ata_qc_complete(qc, AC_ERR_OTHER);
+                qc->err_mask |= AC_ERR_OTHER;
+                ata_qc_complete(qc);
                 spin_unlock_irqrestore(&ap->host_set->lock, flags);
         }
 }
diff --git a/drivers/scsi/sata_promise.c b/drivers/scsi/sata_promise.c
index e9ffc27a0493..b4cbc9d6be1b 100644
--- a/drivers/scsi/sata_promise.c
+++ b/drivers/scsi/sata_promise.c
@@ -158,7 +158,7 @@ static const struct ata_port_operations pdc_pata_ops = {
         .host_stop              = ata_pci_host_stop,
 };
 
-static struct ata_port_info pdc_port_info[] = {
+static const struct ata_port_info pdc_port_info[] = {
         /* board_2037x */
         {
                 .sht            = &pdc_ata_sht,
@@ -404,7 +404,8 @@ static void pdc_eng_timeout(struct ata_port *ap)
         case ATA_PROT_NODATA:
                 printk(KERN_ERR "ata%u: command timeout\n", ap->id);
                 drv_stat = ata_wait_idle(ap);
-                ata_qc_complete(qc, __ac_err_mask(drv_stat));
+                qc->err_mask |= __ac_err_mask(drv_stat);
+                ata_qc_complete(qc);
                 break;
 
         default:
@@ -413,7 +414,8 @@ static void pdc_eng_timeout(struct ata_port *ap)
                 printk(KERN_ERR "ata%u: unknown timeout, cmd 0x%x stat 0x%x\n",
                        ap->id, qc->tf.command, drv_stat);
 
-                ata_qc_complete(qc, ac_err_mask(drv_stat));
+                qc->err_mask |= ac_err_mask(drv_stat);
+                ata_qc_complete(qc);
                 break;
         }
 
@@ -425,21 +427,21 @@ out:
 static inline unsigned int pdc_host_intr( struct ata_port *ap,
                                           struct ata_queued_cmd *qc)
 {
-        unsigned int handled = 0, err_mask = 0;
+        unsigned int handled = 0;
         u32 tmp;
         void __iomem *mmio = (void __iomem *) ap->ioaddr.cmd_addr + PDC_GLOBAL_CTL;
 
         tmp = readl(mmio);
         if (tmp & PDC_ERR_MASK) {
-                err_mask = AC_ERR_DEV;
+                qc->err_mask |= AC_ERR_DEV;
                 pdc_reset_port(ap);
         }
 
         switch (qc->tf.protocol) {
         case ATA_PROT_DMA:
         case ATA_PROT_NODATA:
-                err_mask |= ac_err_mask(ata_wait_idle(ap));
-                ata_qc_complete(qc, err_mask);
+                qc->err_mask |= ac_err_mask(ata_wait_idle(ap));
+                ata_qc_complete(qc);
                 handled = 1;
                 break;
 
@@ -706,7 +708,7 @@ static int pdc_ata_init_one (struct pci_dev *pdev, const struct pci_device_id *e
                 probe_ent->port[3].scr_addr = base + 0x700;
                 break;
         case board_2037x:
-                probe_ent->n_ports = 2;
+                probe_ent->n_ports = 2;
                 break;
         case board_20619:
                 probe_ent->n_ports = 4;
@@ -716,7 +718,7 @@ static int pdc_ata_init_one (struct pci_dev *pdev, const struct pci_device_id *e
 
                 probe_ent->port[2].scr_addr = base + 0x600;
                 probe_ent->port[3].scr_addr = base + 0x700;
-                break;
+                break;
         default:
                 BUG();
                 break;
diff --git a/drivers/scsi/sata_qstor.c b/drivers/scsi/sata_qstor.c
index 17a39ed62306..6367966941d6 100644
--- a/drivers/scsi/sata_qstor.c
+++ b/drivers/scsi/sata_qstor.c
@@ -170,7 +170,7 @@ static const struct ata_port_operations qs_ata_ops = {
         .bmdma_status           = qs_bmdma_status,
 };
 
-static struct ata_port_info qs_port_info[] = {
+static const struct ata_port_info qs_port_info[] = {
         /* board_2068_idx */
         {
                 .sht            = &qs_ata_sht,
@@ -408,8 +408,8 @@ static inline unsigned int qs_intr_pkt(struct ata_host_set *host_set)
                                         case 3: /* device error */
                                                 pp->state = qs_state_idle;
                                                 qs_enter_reg_mode(qc->ap);
-                                                ata_qc_complete(qc,
-                                                        ac_err_mask(sDST));
+                                                qc->err_mask |= ac_err_mask(sDST);
+                                                ata_qc_complete(qc);
                                                 break;
                                         default:
                                                 break;
@@ -446,7 +446,8 @@ static inline unsigned int qs_intr_mmio(struct ata_host_set *host_set)
 
                                 /* complete taskfile transaction */
                                 pp->state = qs_state_idle;
-                                ata_qc_complete(qc, ac_err_mask(status));
+                                qc->err_mask |= ac_err_mask(status);
+                                ata_qc_complete(qc);
                                 handled = 1;
                         }
                 }
diff --git a/drivers/scsi/sata_sil.c b/drivers/scsi/sata_sil.c
index 36091868560d..d2053487c73b 100644
--- a/drivers/scsi/sata_sil.c
+++ b/drivers/scsi/sata_sil.c
@@ -176,7 +176,7 @@ static const struct ata_port_operations sil_ops = {
         .host_stop              = ata_pci_host_stop,
 };
 
-static struct ata_port_info sil_port_info[] = {
+static const struct ata_port_info sil_port_info[] = {
         /* sil_3112 */
         {
                 .sht            = &sil_sht,
diff --git a/drivers/scsi/sata_sil24.c b/drivers/scsi/sata_sil24.c
index e0d6f194f54f..a0ad3ed2200a 100644
--- a/drivers/scsi/sata_sil24.c
+++ b/drivers/scsi/sata_sil24.c
@@ -654,7 +654,8 @@ static void sil24_eng_timeout(struct ata_port *ap)
          */
         printk(KERN_ERR "ata%u: command timeout\n", ap->id);
         qc->scsidone = scsi_finish_command;
-        ata_qc_complete(qc, AC_ERR_OTHER);
+        qc->err_mask |= AC_ERR_OTHER;
+        ata_qc_complete(qc);
 
         sil24_reset_controller(ap);
 }
@@ -711,8 +712,10 @@ static void sil24_error_intr(struct ata_port *ap, u32 slot_stat)
                 sil24_reset_controller(ap);
         }
 
-        if (qc)
-                ata_qc_complete(qc, err_mask);
+        if (qc) {
+                qc->err_mask |= err_mask;
+                ata_qc_complete(qc);
+        }
 }
 
 static inline void sil24_host_intr(struct ata_port *ap)
@@ -734,8 +737,10 @@ static inline void sil24_host_intr(struct ata_port *ap)
                  */
                 sil24_update_tf(ap);
 
-                if (qc)
-                        ata_qc_complete(qc, ac_err_mask(pp->tf.command));
+                if (qc) {
+                        qc->err_mask |= ac_err_mask(pp->tf.command);
+                        ata_qc_complete(qc);
+                }
         } else
                 sil24_error_intr(ap, slot_stat);
 }
diff --git a/drivers/scsi/sata_sx4.c b/drivers/scsi/sata_sx4.c
index 2eea6de12d70..a33862d2b630 100644
--- a/drivers/scsi/sata_sx4.c
+++ b/drivers/scsi/sata_sx4.c
@@ -215,7 +215,7 @@ static const struct ata_port_operations pdc_20621_ops = {
         .host_stop              = pdc20621_host_stop,
 };
 
-static struct ata_port_info pdc_port_info[] = {
+static const struct ata_port_info pdc_port_info[] = {
         /* board_20621 */
         {
                 .sht            = &pdc_sata_sht,
@@ -719,7 +719,8 @@ static inline unsigned int pdc20621_host_intr( struct ata_port *ap,
                         VPRINTK("ata%u: read hdma, 0x%x 0x%x\n", ap->id,
                                 readl(mmio + 0x104), readl(mmio + PDC_HDMA_CTLSTAT));
                         /* get drive status; clear intr; complete txn */
-                        ata_qc_complete(qc, ac_err_mask(ata_wait_idle(ap)));
+                        qc->err_mask |= ac_err_mask(ata_wait_idle(ap));
+                        ata_qc_complete(qc);
                         pdc20621_pop_hdma(qc);
                 }
 
@@ -757,7 +758,8 @@ static inline unsigned int pdc20621_host_intr( struct ata_port *ap,
                         VPRINTK("ata%u: write ata, 0x%x 0x%x\n", ap->id,
                                 readl(mmio + 0x104), readl(mmio + PDC_HDMA_CTLSTAT));
                         /* get drive status; clear intr; complete txn */
-                        ata_qc_complete(qc, ac_err_mask(ata_wait_idle(ap)));
+                        qc->err_mask |= ac_err_mask(ata_wait_idle(ap));
+                        ata_qc_complete(qc);
                         pdc20621_pop_hdma(qc);
                 }
                 handled = 1;
@@ -767,7 +769,8 @@ static inline unsigned int pdc20621_host_intr( struct ata_port *ap,
 
                 status = ata_busy_wait(ap, ATA_BUSY | ATA_DRQ, 1000);
                 DPRINTK("BUS_NODATA (drv_stat 0x%X)\n", status);
-                ata_qc_complete(qc, ac_err_mask(status));
+                qc->err_mask |= ac_err_mask(status);
+                ata_qc_complete(qc);
                 handled = 1;
 
         } else {
@@ -882,7 +885,8 @@ static void pdc_eng_timeout(struct ata_port *ap)
         case ATA_PROT_DMA:
         case ATA_PROT_NODATA:
                 printk(KERN_ERR "ata%u: command timeout\n", ap->id);
-                ata_qc_complete(qc, __ac_err_mask(ata_wait_idle(ap)));
+                qc->err_mask |= __ac_err_mask(ata_wait_idle(ap));
+                ata_qc_complete(qc);
                 break;
 
         default:
@@ -891,7 +895,8 @@ static void pdc_eng_timeout(struct ata_port *ap)
                 printk(KERN_ERR "ata%u: unknown timeout, cmd 0x%x stat 0x%x\n",
                        ap->id, qc->tf.command, drv_stat);
 
-                ata_qc_complete(qc, ac_err_mask(drv_stat));
+                qc->err_mask |= ac_err_mask(drv_stat);
+                ata_qc_complete(qc);
                 break;
         }