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[2/2] tcmu: Add a missing unlock on an error path

Message ID 20171108084415.dn443crpreqwqoiw@mwanda (mailing list archive)
State Not Applicable
Headers show

Commit Message

Dan Carpenter Nov. 8, 2017, 8:44 a.m. UTC 
We added a new error path here but we forgot to drop the lock first
before returning.

Fixes: 0d44374c1aae ("tcmu: fix double se_cmd completion")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>

Comments

Nicholas A. Bellinger Nov. 8, 2017, 9:43 a.m. UTC | #1 
On Wed, 2017-11-08 at 11:44 +0300, Dan Carpenter wrote:
> We added a new error path here but we forgot to drop the lock first
> before returning.
> 
> Fixes: 0d44374c1aae ("tcmu: fix double se_cmd completion")
> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>

Applied to target-pending/for-next.

Thanks DanC !
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Patch

diff --git a/drivers/target/target_core_user.c b/drivers/target/target_core_user.c
index 07f2d95f7ae7..cc2468a299d3 100644
--- a/drivers/target/target_core_user.c
+++ b/drivers/target/target_core_user.c
@@ -888,6 +888,7 @@  tcmu_queue_cmd_ring(struct tcmu_cmd *tcmu_cmd)
 	ret = tcmu_setup_cmd_timer(tcmu_cmd);
 	if (ret) {
 		tcmu_cmd_free_data(tcmu_cmd, tcmu_cmd->dbi_cnt);
+		mutex_unlock(&udev->cmdr_lock);
 		return TCM_OUT_OF_RESOURCES;
 	}
 	entry->hdr.cmd_id = tcmu_cmd->cmd_id;