linux-kernel - [PATCH] scsi: ufs: ufs-exynos: Remove an unnecessary NULL check

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]

Date:   Fri, 26 Jun 2020 13:51:33 +0300
From:   Dan Carpenter <dan.carpenter@...cle.com>
To:     Alim Akhtar <alim.akhtar@...sung.com>
Cc:     Avri Altman <avri.altman@....com>,
        "James E.J. Bottomley" <jejb@...ux.ibm.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        Kukjin Kim <kgene@...nel.org>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        Kiwoong Kim <kwmad.kim@...sung.com>,
        Wei Yongjun <weiyongjun1@...wei.com>,
        linux-scsi@...r.kernel.org, linux-samsung-soc@...r.kernel.org,
        linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org
Subject: [PATCH] scsi: ufs: ufs-exynos: Remove an unnecessary NULL check

The "head" pointer can't be NULL because it points to an address in
the middle of a ufs_hba struct.  Looking at this code, probably someone
would wonder if the intent was to check whether "hba" is NULL, but "hba"
isn't NULL and the check can just be removed.

Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com>
---
 drivers/scsi/ufs/ufs-exynos.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/ufs/ufs-exynos.c b/drivers/scsi/ufs/ufs-exynos.c
index 16544b3dad47..802f7de626e8 100644
--- a/drivers/scsi/ufs/ufs-exynos.c
+++ b/drivers/scsi/ufs/ufs-exynos.c
@@ -264,7 +264,7 @@ static int exynos_ufs_get_clk_info(struct exynos_ufs *ufs)
 	u8 div = 0;
 	int ret = 0;
 
-	if (!head || list_empty(head))
+	if (list_empty(head))
 		goto out;
 
 	list_for_each_entry(clki, head, list) {
-- 
2.27.0