From d7cd3702ca95b1e957493de8f962b47a87b4c6aa Mon Sep 17 00:00:00 2001
From: Chao Yu <yuchao0@huawei.com>
Date: Wed, 1 Jul 2020 10:27:09 +0800
Subject: [PATCH] f2fs: fix return value of move_data_block()

If f2fs_grab_cache_page() fails, it needs to return -ENOMEM.

Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 fs/f2fs/gc.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c
index 6eec3b2d606d..9a40761445d3 100644
--- a/fs/f2fs/gc.c
+++ b/fs/f2fs/gc.c
@@ -849,8 +849,10 @@ static int move_data_block(struct inode *inode, block_t bidx,
 
 	mpage = f2fs_grab_cache_page(META_MAPPING(fio.sbi),
 					fio.old_blkaddr, false);
-	if (!mpage)
+	if (!mpage) {
+		err = -ENOMEM;
 		goto up_out;
+	}
 
 	fio.encrypted_page = mpage;