UAS: Free status URB when we can't find the SCSI tag.

In the UAS status URB completion handler, we need to free the URB, no
matter what happens.  Fix a bug where we would leak the URB (and its
buffer) if we couldn't find a SCSI command that is associated with this
status phase.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>

1 files changed, 3 insertions, 1 deletions

diff --git a/drivers/usb/storage/uas.c b/drivers/usb/storage/uas.c
index 28d9b1909389..9dd4aaee85cc 100644
--- a/drivers/usb/storage/uas.c
+++ b/drivers/usb/storage/uas.c
@@ -246,8 +246,10 @@ static void uas_stat_cmplt(struct urb *urb)
                 cmnd = sdev->current_cmnd;
         else
                 cmnd = scsi_find_tag(sdev, tag);
-        if (!cmnd)
+        if (!cmnd) {
+                usb_free_urb(urb);
                 return;
+        }
 
         switch (iu->iu_id) {
         case IU_ID_STATUS: