linux-kernel - [PATCH] drm/gma500: 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>] [thread-next>] [day] [month] [year] [list]

Message-Id: <1504099556-3887-1-git-send-email-himanshujha199640@gmail.com>
Date:   Wed, 30 Aug 2017 18:55:56 +0530
From:   Himanshu Jha <himanshujha199640@...il.com>
To:     patrik.r.jakobsson@...il.com
Cc:     airlied@...ux.ie, dri-devel@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org,
        Himanshu Jha <himanshujha199640@...il.com>
Subject: [PATCH] drm/gma500:  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>
---
 drivers/gpu/drm/gma500/cdv_intel_dp.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/gma500/cdv_intel_dp.c b/drivers/gpu/drm/gma500/cdv_intel_dp.c
index c52f9ad..a4bb89b 100644
--- a/drivers/gpu/drm/gma500/cdv_intel_dp.c
+++ b/drivers/gpu/drm/gma500/cdv_intel_dp.c
@@ -1901,10 +1901,8 @@ cdv_intel_dp_destroy(struct drm_connector *connector)
 
 	if (is_edp(gma_encoder)) {
 	/*	cdv_intel_panel_destroy_backlight(connector->dev); */
-		if (intel_dp->panel_fixed_mode) {
-			kfree(intel_dp->panel_fixed_mode);
-			intel_dp->panel_fixed_mode = NULL;
-		}
+		kfree(intel_dp->panel_fixed_mode);
+		intel_dp->panel_fixed_mode = NULL;
 	}
 	i2c_del_adapter(&intel_dp->adapter);
 	drm_connector_unregister(connector);
-- 
2.7.4