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path: root/drivers/scsi/scsi_error.c
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Diffstat (limited to 'drivers/scsi/scsi_error.c')
-rw-r--r--drivers/scsi/scsi_error.c42
1 files changed, 17 insertions, 25 deletions
diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c
index 2bf1ee2b47b..ceb4e0c99b3 100644
--- a/drivers/scsi/scsi_error.c
+++ b/drivers/scsi/scsi_error.c
@@ -434,8 +434,7 @@ static void scsi_eh_times_out(struct scsi_cmnd *scmd)
SCSI_LOG_ERROR_RECOVERY(3, printk("%s: scmd:%p\n", __FUNCTION__,
scmd));
- if (scmd->device->host->eh_action)
- up(scmd->device->host->eh_action);
+ up(scmd->device->host->eh_action);
}
/**
@@ -457,8 +456,7 @@ static void scsi_eh_done(struct scsi_cmnd *scmd)
SCSI_LOG_ERROR_RECOVERY(3, printk("%s scmd: %p result: %x\n",
__FUNCTION__, scmd, scmd->result));
- if (scmd->device->host->eh_action)
- up(scmd->device->host->eh_action);
+ up(scmd->device->host->eh_action);
}
}
@@ -528,10 +526,8 @@ static int scsi_send_eh_cmnd(struct scsi_cmnd *scmd, int timeout)
* abort a timed out command or not. not sure how
* we should treat them differently anyways.
*/
- spin_lock_irqsave(shost->host_lock, flags);
if (shost->hostt->eh_abort_handler)
shost->hostt->eh_abort_handler(scmd);
- spin_unlock_irqrestore(shost->host_lock, flags);
scmd->request->rq_status = RQ_SCSI_DONE;
scmd->owner = SCSI_OWNER_ERROR_HANDLER;
@@ -737,11 +733,8 @@ static int scsi_eh_get_sense(struct list_head *work_q,
**/
static int scsi_try_to_abort_cmd(struct scsi_cmnd *scmd)
{
- unsigned long flags;
- int rtn = FAILED;
-
if (!scmd->device->host->hostt->eh_abort_handler)
- return rtn;
+ return FAILED;
/*
* scsi_done was called just after the command timed out and before
@@ -752,11 +745,7 @@ static int scsi_try_to_abort_cmd(struct scsi_cmnd *scmd)
scmd->owner = SCSI_OWNER_LOWLEVEL;
- spin_lock_irqsave(scmd->device->host->host_lock, flags);
- rtn = scmd->device->host->hostt->eh_abort_handler(scmd);
- spin_unlock_irqrestore(scmd->device->host->host_lock, flags);
-
- return rtn;
+ return scmd->device->host->hostt->eh_abort_handler(scmd);
}
/**
@@ -770,6 +759,7 @@ static int scsi_eh_tur(struct scsi_cmnd *scmd)
{
static unsigned char tur_command[6] = {TEST_UNIT_READY, 0, 0, 0, 0, 0};
int retry_cnt = 1, rtn;
+ int saved_result;
retry_tur:
memcpy(scmd->cmnd, tur_command, sizeof(tur_command));
@@ -780,6 +770,7 @@ retry_tur:
*/
memset(scmd->sense_buffer, 0, sizeof(scmd->sense_buffer));
+ saved_result = scmd->result;
scmd->request_buffer = NULL;
scmd->request_bufflen = 0;
scmd->use_sg = 0;
@@ -794,6 +785,7 @@ retry_tur:
* the original request, so let's restore the original data. (db)
*/
scsi_setup_cmd_retry(scmd);
+ scmd->result = saved_result;
/*
* hey, we are done. let's look to see what happened.
@@ -865,17 +857,14 @@ static int scsi_eh_abort_cmds(struct list_head *work_q,
**/
static int scsi_try_bus_device_reset(struct scsi_cmnd *scmd)
{
- unsigned long flags;
- int rtn = FAILED;
+ int rtn;
if (!scmd->device->host->hostt->eh_device_reset_handler)
- return rtn;
+ return FAILED;
scmd->owner = SCSI_OWNER_LOWLEVEL;
- spin_lock_irqsave(scmd->device->host->host_lock, flags);
rtn = scmd->device->host->hostt->eh_device_reset_handler(scmd);
- spin_unlock_irqrestore(scmd->device->host->host_lock, flags);
if (rtn == SUCCESS) {
scmd->device->was_reset = 1;
@@ -896,6 +885,7 @@ static int scsi_eh_try_stu(struct scsi_cmnd *scmd)
{
static unsigned char stu_command[6] = {START_STOP, 0, 0, 0, 1, 0};
int rtn;
+ int saved_result;
if (!scmd->device->allow_restart)
return 1;
@@ -908,6 +898,7 @@ static int scsi_eh_try_stu(struct scsi_cmnd *scmd)
*/
memset(scmd->sense_buffer, 0, sizeof(scmd->sense_buffer));
+ saved_result = scmd->result;
scmd->request_buffer = NULL;
scmd->request_bufflen = 0;
scmd->use_sg = 0;
@@ -922,6 +913,7 @@ static int scsi_eh_try_stu(struct scsi_cmnd *scmd)
* the original request, so let's restore the original data. (db)
*/
scsi_setup_cmd_retry(scmd);
+ scmd->result = saved_result;
/*
* hey, we are done. let's look to see what happened.
@@ -1061,9 +1053,7 @@ static int scsi_try_bus_reset(struct scsi_cmnd *scmd)
if (!scmd->device->host->hostt->eh_bus_reset_handler)
return FAILED;
- spin_lock_irqsave(scmd->device->host->host_lock, flags);
rtn = scmd->device->host->hostt->eh_bus_reset_handler(scmd);
- spin_unlock_irqrestore(scmd->device->host->host_lock, flags);
if (rtn == SUCCESS) {
if (!scmd->device->host->hostt->skip_settle_delay)
@@ -1092,9 +1082,7 @@ static int scsi_try_host_reset(struct scsi_cmnd *scmd)
if (!scmd->device->host->hostt->eh_host_reset_handler)
return FAILED;
- spin_lock_irqsave(scmd->device->host->host_lock, flags);
rtn = scmd->device->host->hostt->eh_host_reset_handler(scmd);
- spin_unlock_irqrestore(scmd->device->host->host_lock, flags);
if (rtn == SUCCESS) {
if (!scmd->device->host->hostt->skip_settle_delay)
@@ -1561,6 +1549,11 @@ static void scsi_eh_flush_done_q(struct list_head *done_q)
scmd));
scsi_queue_insert(scmd, SCSI_MLQUEUE_EH_RETRY);
} else {
+ /*
+ * If just we got sense for the device (called
+ * scsi_eh_get_sense), scmd->result is already
+ * set, do not set DRIVER_TIMEOUT.
+ */
if (!scmd->result)
scmd->result |= (DRIVER_TIMEOUT << 24);
SCSI_LOG_ERROR_RECOVERY(3, printk("%s: flush finish"
@@ -1870,7 +1863,6 @@ scsi_reset_provider(struct scsi_device *dev, int flag)
rtn = FAILED;
}
- scsi_delete_timer(scmd);
scsi_next_command(scmd);
return rtn;
}