scsi: sg: fix minor memory leak in error path

Fix a minor memory leak when there is an error opening a /dev/sg device.

Fixes: cc833acbee ("sg: O_EXCL and other lock handling")
Cc: <stable@vger.kernel.org>
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: Tony Battersby <tonyb@cybernetics.com>
Reviewed-by: Bart Van Assche <bart.vanassche@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Tony Battersby 2018-07-12 16:30:45 -04:00 committed by Martin K. Petersen
parent a17037e7d5
commit c170e5a8d2

View File

@ -2185,6 +2185,7 @@ sg_add_sfp(Sg_device * sdp)
write_lock_irqsave(&sdp->sfd_lock, iflags);
if (atomic_read(&sdp->detaching)) {
write_unlock_irqrestore(&sdp->sfd_lock, iflags);
kfree(sfp);
return ERR_PTR(-ENODEV);
}
list_add_tail(&sfp->sfd_siblings, &sdp->sfds);