linux-kernel - [PATCH] [media] atomisp2: Remove null check before kfree

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>] [day] [month] [year] [list]

Date:   Sun, 27 Aug 2017 02:21:49 +0530
From:   Himanshu Jha <himanshujha199640@...il.com>
To:     mchehab@...nel.org
Cc:     gregkh@...uxfoundation.org, linux-media@...r.kernel.org,
        devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org,
        Himanshu Jha <himanshujha199640@...il.com>
Subject: [PATCH] [media] atomisp2: Remove null check before kfree

Kfree on NULL pointer is a no-op and therefore checking is redundant.

Signed-off-by: Himanshu Jha <himanshujha199640@...il.com>
---
 .../staging/media/atomisp/pci/atomisp2/css2400/sh_css_firmware.c    | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/sh_css_firmware.c b/drivers/staging/media/atomisp/pci/atomisp2/css2400/sh_css_firmware.c
index 6358216..451c76e 100644
--- a/drivers/staging/media/atomisp/pci/atomisp2/css2400/sh_css_firmware.c
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/sh_css_firmware.c
@@ -295,10 +295,8 @@ void sh_css_unload_firmware(void)
 	}
 
 	memset(&sh_css_sp_fw, 0, sizeof(sh_css_sp_fw));
-	if (sh_css_blob_info) {
-		kfree(sh_css_blob_info);
-		sh_css_blob_info = NULL;
-	}
+	kfree(sh_css_blob_info);
+	sh_css_blob_info = NULL;
 	sh_css_num_binaries = 0;
 }
 
-- 
2.7.4