From: Chris Lalancette <clalance@redhat.com>
Date: Fri, 30 May 2008 20:09:41 +0000 (-0500)
Subject: Fix crash in virtio_blk during modprobe ; rmmod ; modprobe
X-Git-Tag: v2.6.26-rc5~30^2~11
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ac9d463afb1ca2434335351f3b7d9e4c8f8470e9;p=linux-2.6

Fix crash in virtio_blk during modprobe ; rmmod ; modprobe

Fix a modprobe virtio_blk ; rmmod virtio_blk ; modprobe virtio_blk crash; this
was basically because we weren't doing "del_gendisk()" in the remove path.

Signed-off-by: Chris Lalancette <clalance@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (moved del_gendisk up)
---

diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c
index 84e064ffee..c4804f3465 100644
--- a/drivers/block/virtio_blk.c
+++ b/drivers/block/virtio_blk.c
@@ -311,6 +311,7 @@ static void virtblk_remove(struct virtio_device *vdev)
 	/* Stop all the virtqueues. */
 	vdev->config->reset(vdev);
 
+	del_gendisk(vblk->disk);
 	blk_cleanup_queue(vblk->disk->queue);
 	put_disk(vblk->disk);
 	mempool_destroy(vblk->pool);