linux-ext4 - [PATCH] ext2: Delete an unnecessary check before brelse()

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Message-ID: <51dea296-2207-ebc0-bac3-13f3e5c3b235@web.de>
Date:   Tue, 3 Sep 2019 14:44:08 +0200
From:   Markus Elfring <Markus.Elfring@....de>
To:     linux-ext4@...r.kernel.org, Jan Kara <jack@...e.com>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org
Subject: [PATCH] ext2: Delete an unnecessary check before brelse()

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Tue, 3 Sep 2019 14:40:18 +0200

The brelse() function tests whether its argument is NULL
and then returns immediately.
Thus the test around the call is not needed.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
---
 fs/ext2/super.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/fs/ext2/super.c b/fs/ext2/super.c
index baa36c6fb71e..30c630d73f0f 100644
--- a/fs/ext2/super.c
+++ b/fs/ext2/super.c
@@ -162,8 +162,7 @@ static void ext2_put_super (struct super_block * sb)
 	}
 	db_count = sbi->s_gdb_count;
 	for (i = 0; i < db_count; i++)
-		if (sbi->s_group_desc[i])
-			brelse (sbi->s_group_desc[i]);
+		brelse(sbi->s_group_desc[i]);
 	kfree(sbi->s_group_desc);
 	kfree(sbi->s_debts);
 	percpu_counter_destroy(&sbi->s_freeblocks_counter);
--
2.23.0