[PATCH v4 8/8] jbd2: remove unneeded check of ret in jbd2_fc_get_buf

[Kemeng Shi]

Simply return -EINVAL if j_fc_off is invalid to avoid repeated check of
ret.

Signed-off-by: Kemeng Shi <shikemeng@xxxxxxxxxxxxxxx>
Reviewed-by: Jan Kara <jack@xxxxxxx>
Reviewed-by: Zhang Yi <yi.zhang@xxxxxxxxxx>
---
 fs/jbd2/journal.c | 16 +++++-----------
 1 file changed, 5 insertions(+), 11 deletions(-)

diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c
index e89d777ded34..c5179aa38111 100644
--- a/fs/jbd2/journal.c
+++ b/fs/jbd2/journal.c
@@ -837,17 +837,12 @@ int jbd2_fc_get_buf(journal_t *journal, struct buffer_head **bh_out)
 
 	*bh_out = NULL;
 
-	if (journal->j_fc_off + journal->j_fc_first < journal->j_fc_last) {
-		fc_off = journal->j_fc_off;
-		blocknr = journal->j_fc_first + fc_off;
-		journal->j_fc_off++;
-	} else {
-		ret = -EINVAL;
-	}
-
-	if (ret)
-		return ret;
+	if (journal->j_fc_off + journal->j_fc_first >= journal->j_fc_last)
+		return -EINVAL;
 
+	fc_off = journal->j_fc_off;
+	blocknr = journal->j_fc_first + fc_off;
+	journal->j_fc_off++;
 	ret = jbd2_journal_bmap(journal, blocknr, &pblock);
 	if (ret)
 		return ret;
@@ -856,7 +851,6 @@ int jbd2_fc_get_buf(journal_t *journal, struct buffer_head **bh_out)
 	if (!bh)
 		return -ENOMEM;
 
-
 	journal->j_fc_wbuf[fc_off] = bh;
 
 	*bh_out = bh;
-- 
2.30.0