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[SCSI] bsg: fix bsg_unregister_queue
author
FUJITA Tomonori
<tomof@acm.org>
Sat, 21 Jul 2007 04:23:25 +0000
(13:23 +0900)
committer
James Bottomley
<jejb@mulgrave.localdomain>
Sat, 21 Jul 2007 13:58:41 +0000
(08:58 -0500)
scsi_sysfs_add_sdev ignores the bsg_register_queue failure, so
bsg_unregister_queue must check whether the queue has a bsg device.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
block/bsg.c
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diff --git
a/block/bsg.c
b/block/bsg.c
index
4eebcd5
..
1ba9bc6
100644
(file)
--- a/
block/bsg.c
+++ b/
block/bsg.c
@@
-932,7
+932,8
@@
void bsg_unregister_queue(struct request_queue *q)
{
struct bsg_class_device *bcd = &q->bsg_dev;
- WARN_ON(!bcd->class_dev);
+ if (!bcd->class_dev)
+ return;
mutex_lock(&bsg_mutex);
sysfs_remove_link(&q->kobj, "bsg");