[PATCH] sg: fix minor memory leak in error path

[Tony Battersby <tonyb@xxxxxxxxxxxxxxx>]

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

Signed-off-by: Tony Battersby <tonyb@xxxxxxxxxxxxxxx>
---
diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c
index cd2fdac..2962a38 100644
--- a/drivers/scsi/sg.c
+++ b/drivers/scsi/sg.c
@@ -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);