[patch] xen-blkback: add missing return on error inxen_update_blkif_status()

[Dan Carpenter]

We should return here after reporting the error.  Otherwise we'd hit
a NULL deref of blkif->xenblkd on the next line.

Signed-off-by: Dan Carpenter <error27@xxxxxxxxx>

diff --git a/drivers/block/xen-blkback/xenbus.c b/drivers/block/xen-blkback/xenbus.c
index 32d4c3c..b750299 100644
--- a/drivers/block/xen-blkback/xenbus.c
+++ b/drivers/block/xen-blkback/xenbus.c
@@ -107,6 +107,7 @@ static void xen_update_blkif_status(struct xen_blkif *blkif)
 		err = PTR_ERR(blkif->xenblkd);
 		blkif->xenblkd = NULL;
 		xenbus_dev_error(blkif->be->dev, err, "start xenblkd");
+		return;
 	}
 
 	blkif->be->kthread_pid = blkif->xenblkd->pid;
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/