From: Zhilong Liu zlliu@suse.com
[ 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 --- drivers/md/md.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/md/md.c b/drivers/md/md.c index 8ebf1b97e1d2..564da422c179 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)