linux-ext4 - [PATCHv3 3/4] fs/buffer: Drop useless return value of submit

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Date:   Thu, 18 Aug 2022 10:34:39 +0530
From:   "Ritesh Harjani (IBM)" <ritesh.list@...il.com>
To:     linux-ext4@...r.kernel.org, linux-fsdevel@...r.kernel.org
Cc:     Jan Kara <jack@...e.com>, Alexander Viro <viro@...iv.linux.org.uk>,
        Christoph Hellwig <hch@....de>,
        linux-ntfs-dev@...ts.sourceforge.net,
        "Ritesh Harjani (IBM)" <ritesh.list@...il.com>
Subject: [PATCHv3 3/4] fs/buffer: Drop useless return value of submit_bh

submit_bh always returns 0. This patch drops the useless return value of
submit_bh from __sync_dirty_buffer(). Once all of submit_bh callers are
cleaned up, we can make it's return type as void.

Signed-off-by: Ritesh Harjani (IBM) <ritesh.list@...il.com>
---
 fs/buffer.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/fs/buffer.c b/fs/buffer.c
index 55e762a58eb6..c21b72c06eb0 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -2801,8 +2801,6 @@ EXPORT_SYMBOL(write_dirty_buffer);
  */
 int __sync_dirty_buffer(struct buffer_head *bh, blk_opf_t op_flags)
 {
-	int ret = 0;
-
 	WARN_ON(atomic_read(&bh->b_count) < 1);
 	lock_buffer(bh);
 	if (test_clear_buffer_dirty(bh)) {
@@ -2817,14 +2815,14 @@ int __sync_dirty_buffer(struct buffer_head *bh, blk_opf_t op_flags)
 
 		get_bh(bh);
 		bh->b_end_io = end_buffer_write_sync;
-		ret = submit_bh(REQ_OP_WRITE | op_flags, bh);
+		submit_bh(REQ_OP_WRITE | op_flags, bh);
 		wait_on_buffer(bh);
-		if (!ret && !buffer_uptodate(bh))
-			ret = -EIO;
+		if (!buffer_uptodate(bh))
+			return -EIO;
 	} else {
 		unlock_buffer(bh);
 	}
-	return ret;
+	return 0;
 }
 EXPORT_SYMBOL(__sync_dirty_buffer);
 
-- 
2.35.3