linux-kernel - [PATCH linux-next] fs/ext4: use BUG_ON instead of if condition followed by BUG

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Message-Id: <20211219130643.462943-1-xu.xin16@zte.com.cn>
Date:   Sun, 19 Dec 2021 13:06:43 +0000
From:   cgel.zte@...il.com
To:     tytso@....edu, linux-ext4@...r.kernel.org
Cc:     adilger.kernel@...ger.ca, linux-kernel@...r.kernel.org,
        xu xin <xu.xin16@....com.cn>, Zeal robot <zealci@....com.cn>
Subject: [PATCH linux-next] fs/ext4: use BUG_ON instead of if condition followed by BUG

From: xu xin <xu.xin16@....com.cn>

BUG_ON would be better.

This issue was detected with the help of Coccinelle.

Reported-by: Zeal robot <zealci@....com.cn>
Signed-off-by: xu xin <xu.xin16@....com.cn>
---
 fs/ext4/ext4.h | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 9cc55bcda6ba..00bc3f67d37f 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -2400,8 +2400,7 @@ ext4_rec_len_from_disk(__le16 dlen, unsigned blocksize)
 
 static inline __le16 ext4_rec_len_to_disk(unsigned len, unsigned blocksize)
 {
-	if ((len > blocksize) || (blocksize > (1 << 18)) || (len & 3))
-		BUG();
+	BUG_ON((len > blocksize) || (blocksize > (1 << 18)) || (len & 3));
 #if (PAGE_SIZE >= 65536)
 	if (len < 65536)
 		return cpu_to_le16(len);
-- 
2.25.1