diff options
| author | Dan Williams <dan.j.williams@intel.com> | 2011-12-22 03:19:56 +0400 |
|---|---|---|
| committer | James Bottomley <JBottomley@Parallels.com> | 2012-02-29 22:55:12 +0400 |
| commit | 3a9c5560f677690f65038f399f4f598c79b83186 (patch) | |
| tree | 1e15d427fd86260fc26670bc4ceff61d51ef025e /drivers/scsi/libsas | |
| parent | 0508c2f3b701f3cd8ed52b2a4abbb2a670f69ce2 (diff) | |
| download | linux-3a9c5560f677690f65038f399f4f598c79b83186.tar.xz | |
[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: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'drivers/scsi/libsas')
| -rw-r--r-- | drivers/scsi/libsas/sas_expander.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/scsi/libsas/sas_expander.c b/drivers/scsi/libsas/sas_expander.c index 7701ab588404..6fb1f3afd1e0 100644 --- a/drivers/scsi/libsas/sas_expander.c +++ b/drivers/scsi/libsas/sas_expander.c @@ -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); for (retry = 0; retry < 3; retry++) { + if (test_bit(SAS_DEV_GONE, &dev->state)) { + res = -ECOMM; + break; + } + task = sas_alloc_task(GFP_KERNEL); if (!task) { res = -ENOMEM; |