linux-kernel - [PATCH] f2fs: check return value of freeze

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Date:   Tue,  6 Jun 2023 14:19:01 +0800
From:   Chao Yu <chao@...nel.org>
To:     jaegeuk@...nel.org
Cc:     linux-f2fs-devel@...ts.sourceforge.net,
        linux-kernel@...r.kernel.org, Chao Yu <chao@...nel.org>
Subject: [PATCH] f2fs: check return value of freeze_super()

freeze_super() can fail, it needs to check its return value and do
error handling in f2fs_resize_fs().

Fixes: 04f0b2eaa3b3 ("f2fs: ioctl for removing a range from F2FS")
Fixes: b4b10061ef98 ("f2fs: refactor resize_fs to avoid meta updates in progress")
Signed-off-by: Chao Yu <chao@...nel.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 8cbe4839f640..de893f4f60e1 100644
--- a/fs/f2fs/gc.c
+++ b/fs/f2fs/gc.c
@@ -2271,7 +2271,9 @@ int f2fs_resize_fs(struct file *filp, __u64 block_count)
 	if (err)
 		return err;
 
-	freeze_super(sbi->sb);
+	err = freeze_super(sbi->sb);
+	if (err)
+		return err;
 
 	if (f2fs_readonly(sbi->sb)) {
 		thaw_super(sbi->sb);
-- 
2.40.1