Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

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

[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

drivers/scsi/libsas/sas_expander.c

+5 −0
Original line number Diff line number Diff line
@@ -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;