quota: fix wrong indentation

We need to check return code only when calling ->read_dqblk(),
so fix it properly.
Signed-off-by: Chengguang Xu <cgxu519@gmx.com>
Signed-off-by: Jan Kara <jack@suse.cz>

fs/quota/dquot.c

@@ -424,10 +424,11 @@ int dquot_acquire(struct dquot *dquot)
 	struct quota_info *dqopt = sb_dqopt(dquot->dq_sb);
 
 	mutex_lock(&dquot->dq_lock);
-	if (!test_bit(DQ_READ_B, &dquot->dq_flags))
+	if (!test_bit(DQ_READ_B, &dquot->dq_flags)) {
 		ret = dqopt->ops[dquot->dq_id.type]->read_dqblk(dquot);
-	if (ret < 0)
-		goto out_iolock;
+		if (ret < 0)
+			goto out_iolock;
+	}
 	/* Make sure flags update is visible after dquot has been filled */
 	smp_mb__before_atomic();
 	set_bit(DQ_READ_B, &dquot->dq_flags);