If we alloc array of buffer_head failed, there is no resource need to be
freed and we can simpily return error.

Signed-off-by: Kemeng Shi <shikemeng@huaweicloud.com>
Reviewed-by: Ojaswin Mujoo <ojaswin@linux.ibm.com>
---
 fs/ext4/mballoc.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index 0a34211bb507..64a889b357d2 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -1168,10 +1168,8 @@ static int ext4_mb_init_cache(struct page *page, char *incore, gfp_t gfp)
 	if (groups_per_page > 1) {
 		i = sizeof(struct buffer_head *) * groups_per_page;
 		bh = kzalloc(i, gfp);
-		if (bh == NULL) {
-			err = -ENOMEM;
-			goto out;
-		}
+		if (bh == NULL)
+			return -ENOMEM;
 	} else
 		bh = &bhs;
 
-- 
2.30.0