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authorZhilong Liu <zlliu@suse.com>2017-04-10 14:15:55 +0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-03-22 09:17:50 +0100
commit1f8fe98e0e096728a47bda7bf9a632b3e89970b5 (patch)
tree6204ebbb144743bff3ba05b9ada166d73eb2605e
parentb42b97a5657f49c51f523f691e8a867708a38b80 (diff)
md.c:didn't unlock the mddev before return EINVAL in array_size_store
[ Upstream commit b670883bb9e55ba63a278d83e034faefc01ce2cf ] md.c: it needs to release the mddev lock before the array_size_store() returns. Fixes: ab5a98b132fd ("md-cluster: change array_sectors and update size are not supported") Signed-off-by: Zhilong Liu <zlliu@suse.com> Reviewed-by: Guoqing Jiang <gqjiang@suse.com> Signed-off-by: Shaohua Li <shli@fb.com> Signed-off-by: Sasha Levin <alexander.levin@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/md/md.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/md/md.c b/drivers/md/md.c
index 27d8bb21e04f..a7bc70334f0e 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -4826,8 +4826,10 @@ array_size_store(struct mddev *mddev, const char *buf, size_t len)
return err;
/* cluster raid doesn't support change array_sectors */
- if (mddev_is_clustered(mddev))
+ if (mddev_is_clustered(mddev)) {
+ mddev_unlock(mddev);
return -EINVAL;
+ }
if (strncmp(buf, "default", 7) == 0) {
if (mddev->pers)