linux-ext4 - [PATCH] ext4: remove the null check of bio

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <20201020082201.34257-1-tian.xianting@h3c.com>
Date:   Tue, 20 Oct 2020 16:22:01 +0800
From:   Xianting Tian <tian.xianting@....com>
To:     <tytso@....edu>, <adilger.kernel@...ger.ca>, <jack@...e.cz>
CC:     <linux-ext4@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        Xianting Tian <tian.xianting@....com>
Subject: [PATCH] ext4: remove the null check of bio_vec page

bv_page can't be NULL in a valid bio_vec, so we can remove the NULL check,
as we did in other places when calling bio_for_each_segment_all() to go
through all bio_vec of a bio.

Signed-off-by: Xianting Tian <tian.xianting@....com>
---
 fs/ext4/page-io.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/fs/ext4/page-io.c b/fs/ext4/page-io.c
index defd2e10d..cb135a944 100644
--- a/fs/ext4/page-io.c
+++ b/fs/ext4/page-io.c
@@ -111,9 +111,6 @@ static void ext4_finish_bio(struct bio *bio)
 		unsigned under_io = 0;
 		unsigned long flags;
 
-		if (!page)
-			continue;
-
 		if (fscrypt_is_bounce_page(page)) {
 			bounce_page = page;
 			page = fscrypt_pagecache_page(bounce_page);
-- 
2.17.1