f2fs: hanlde error case in f2fs_ioc_shutdown

This patch makes f2fs_ioc_shutdown handling error case correctly.

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

1 files changed, 8 insertions, 2 deletions

diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index f31f0590cdc7..e20b01acbd2c 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -1839,14 +1839,20 @@ static int f2fs_ioc_shutdown(struct file *filp, unsigned long arg)
         switch (in) {
         case F2FS_GOING_DOWN_FULLSYNC:
                 sb = freeze_bdev(sb->s_bdev);
-                if (sb && !IS_ERR(sb)) {
+                if (IS_ERR(sb)) {
+                        ret = PTR_ERR(sb);
+                        goto out;
+                }
+                if (sb) {
                         f2fs_stop_checkpoint(sbi, false);
                         thaw_bdev(sb->s_bdev, sb);
                 }
                 break;
         case F2FS_GOING_DOWN_METASYNC:
                 /* do checkpoint only */
-                f2fs_sync_fs(sb, 1);
+                ret = f2fs_sync_fs(sb, 1);
+                if (ret)
+                        goto out;
                 f2fs_stop_checkpoint(sbi, false);
                 break;
         case F2FS_GOING_DOWN_NOSYNC: