Commit 3a9c5560 authored by Dan Williams's avatar Dan Williams Committed by James Bottomley

[SCSI] libsas: check for 'gone' expanders in smp_execute_task()

No sense in issuing or retrying commands to an expander that has been
removed.
Signed-off-by: default avatarDan Williams <dan.j.williams@intel.com>
Signed-off-by: default avatarJames Bottomley <JBottomley@Parallels.com>
parent 0508c2f3
...@@ -74,6 +74,11 @@ static int smp_execute_task(struct domain_device *dev, void *req, int req_size, ...@@ -74,6 +74,11 @@ static int smp_execute_task(struct domain_device *dev, void *req, int req_size,
mutex_lock(&dev->ex_dev.cmd_mutex); mutex_lock(&dev->ex_dev.cmd_mutex);
for (retry = 0; retry < 3; retry++) { for (retry = 0; retry < 3; retry++) {
if (test_bit(SAS_DEV_GONE, &dev->state)) {
res = -ECOMM;
break;
}
task = sas_alloc_task(GFP_KERNEL); task = sas_alloc_task(GFP_KERNEL);
if (!task) { if (!task) {
res = -ENOMEM; res = -ENOMEM;
......
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