[PATCH] dm: suspend: fix error path
If the device is already suspended, just return the error and skip the code
that would incorrectly wipe md->suspended_bdev.
(This isn't currently a problem because existing code avoids calling this
function if the device is already suspended.)
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Cc: <dm-devel@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index b5764a8..fc4f743 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -1285,7 +1285,7 @@
down(&md->suspend_lock);
if (dm_suspended(md))
- goto out;
+ goto out_unlock;
map = dm_get_table(md);
@@ -1361,6 +1361,8 @@
}
dm_table_put(map);
+
+out_unlock:
up(&md->suspend_lock);
return r;
}