linux-kernel - [PATCH] GPU-DRM-sun4i: Delete an unnecessary check before drm_fbdev_cma_hotplug

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 for Android: free password hash cracker in your pocket

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

Message-ID: <cd959d92-f7d9-598c-421f-d3f40bedee10@users.sourceforge.net>
Date:	Wed, 20 Jul 2016 18:40:49 +0200
From:	SF Markus Elfring <elfring@...rs.sourceforge.net>
To:	dri-devel@...ts.freedesktop.org,
	linux-arm-kernel@...ts.infradead.org, Chen-Yu Tsai <wens@...e.org>,
	Daniel Vetter <daniel@...ll.ch>,
	David Airlie <airlied@...ux.ie>,
	Maxime Ripard <maxime.ripard@...e-electrons.com>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	kernel-janitors@...r.kernel.org,
	Julia Lawall <julia.lawall@...6.fr>
Subject: [PATCH] GPU-DRM-sun4i: Delete an unnecessary check before
 drm_fbdev_cma_hotplug_event()

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Wed, 20 Jul 2016 18:32:34 +0200

The drm_fbdev_cma_hotplug_event() function tests whether its argument
is NULL and then returns immediately.
Thus the test around the call is not needed.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
---
 drivers/gpu/drm/sun4i/sun4i_framebuffer.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/sun4i/sun4i_framebuffer.c b/drivers/gpu/drm/sun4i/sun4i_framebuffer.c
index a0b30c2..70688fe 100644
--- a/drivers/gpu/drm/sun4i/sun4i_framebuffer.c
+++ b/drivers/gpu/drm/sun4i/sun4i_framebuffer.c
@@ -20,8 +20,7 @@ static void sun4i_de_output_poll_changed(struct drm_device *drm)
 {
 	struct sun4i_drv *drv = drm->dev_private;
 
-	if (drv->fbdev)
-		drm_fbdev_cma_hotplug_event(drv->fbdev);
+	drm_fbdev_cma_hotplug_event(drv->fbdev);
 }
 
 static const struct drm_mode_config_funcs sun4i_de_mode_config_funcs = {
-- 
2.9.2