[PATCH AUTOSEL 5.7 105/388] scsi: sr: Fix sr_probe() missing mutex_destroy

[Sasha Levin]

From: Simon Arlott <simon@xxxxxxxxxxx>

[ Upstream commit a247e07f8dadba5da9f188aaf4f96db0302146d9 ]

If the device minor cannot be allocated or the cdrom fails to be registered
then the mutex should be destroyed.

Link: https://lore.kernel.org/r/06e9de38-eeed-1cab-5e08-e889288935b3@0882a8b5-c6c3-11e9-b005-00805fc181fe
Fixes: 51a858817dcd ("scsi: sr: get rid of sr global mutex")
Signed-off-by: Simon Arlott <simon@xxxxxxxxxxx>
Signed-off-by: Martin K. Petersen <martin.petersen@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 drivers/scsi/sr.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/scsi/sr.c b/drivers/scsi/sr.c
index d2fe3fa470f9..8d062d4f3ce0 100644
--- a/drivers/scsi/sr.c
+++ b/drivers/scsi/sr.c
@@ -817,6 +817,7 @@ static int sr_probe(struct device *dev)
 
 fail_put:
 	put_disk(disk);
+	mutex_destroy(&cd->lock);
 fail_free:
 	kfree(cd);
 fail:
-- 
2.25.1