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

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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