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>

diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 2eb9710..b108395 100644 (file)
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -1815,14 +1815,20 @@ 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: