linux-kernel - [PATCH] gfs2: Remove redundant NULL check before kfree

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Date:   Thu,  2 Jun 2022 07:19:39 +0000
From:   cgel.zte@...il.com
To:     rpeterso@...hat.com
Cc:     agruenba@...hat.com, cluster-devel@...hat.com,
        linux-kernel@...r.kernel.org, Minghao Chi <chi.minghao@....com.cn>,
        Zeal Robot <zealci@....com.cn>
Subject: [PATCH] gfs2: Remove redundant NULL check before kfree

From: Minghao Chi <chi.minghao@....com.cn>

kfree on NULL pointer is a no-op.

Reported-by: Zeal Robot <zealci@....com.cn>
Signed-off-by: Minghao Chi <chi.minghao@....com.cn>
---
 fs/gfs2/file.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/fs/gfs2/file.c b/fs/gfs2/file.c
index 2cceb193dcd8..d8f1239344c1 100644
--- a/fs/gfs2/file.c
+++ b/fs/gfs2/file.c
@@ -1066,8 +1066,7 @@ static ssize_t gfs2_file_buffered_write(struct kiocb *iocb,
 		gfs2_glock_dq(gh);
 out_uninit:
 	gfs2_holder_uninit(gh);
-	if (statfs_gh)
-		kfree(statfs_gh);
+	kfree(statfs_gh);
 	from->count = orig_count - written;
 	return written ? written : ret;
 }
-- 
2.25.1