Just cleanup for readable, no functional changes.
Suggested-by: Chao Yu <chao@kernel.org>
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
 {
        dev_t dev = sbi->sb->s_bdev->bd_dev;
        struct flush_cmd_control *fcc;
-       int err = 0;
+       int err;
 
        if (SM_I(sbi)->fcc_info) {
                fcc = SM_I(sbi)->fcc_info;
                if (fcc->f2fs_issue_flush)
-                       return err;
+                       return 0;
                goto init_thread;
        }
 
        init_llist_head(&fcc->issue_list);
        SM_I(sbi)->fcc_info = fcc;
        if (!test_opt(sbi, FLUSH_MERGE))
-               return err;
+               return 0;
 
 init_thread:
        fcc->f2fs_issue_flush = kthread_run(issue_flush_thread, sbi,
                return err;
        }
 
-       return err;
+       return 0;
 }
 
 void f2fs_destroy_flush_cmd_control(struct f2fs_sb_info *sbi, bool free)