From: Chao Yu <yuchao0@huawei.com>
Date: Fri, 26 Apr 2019 09:57:54 +0000 (+0800)
Subject: f2fs: fix to handle error in f2fs_disable_checkpoint()
X-Git-Tag: v5.2-rc1~74^2~4
X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=896285ad02ea1e8a7cedbceb5e5656335b7ae563;p=linux.git

f2fs: fix to handle error in f2fs_disable_checkpoint()

In f2fs_disable_checkpoint(), it needs to detect and propagate error
number returned from f2fs_write_checkpoint().

Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---

diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 4f8e9ab48b26..fe075aa12893 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -1504,9 +1504,12 @@ static int f2fs_disable_checkpoint(struct f2fs_sb_info *sbi)
 	mutex_lock(&sbi->gc_mutex);
 	cpc.reason = CP_PAUSE;
 	set_sbi_flag(sbi, SBI_CP_DISABLED);
-	f2fs_write_checkpoint(sbi, &cpc);
+	err = f2fs_write_checkpoint(sbi, &cpc);
+	if (err)
+		goto out_unlock;
 
 	sbi->unusable_block_count = 0;
+out_unlock:
 	mutex_unlock(&sbi->gc_mutex);
 restore_flag:
 	sbi->sb->s_flags = s_flags;	/* Restore MS_RDONLY status */