linux-kernel - [PATCH 7/9 linux-next] drm/gma500: use container_of to resolve psb_fbdev from drm_fb

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Message-Id: <1410712823-29137-8-git-send-email-fabf@skynet.be>
Date:	Sun, 14 Sep 2014 18:40:20 +0200
From:	Fabian Frederick <fabf@...net.be>
To:	linux-kernel@...r.kernel.org
Cc:	airlied@...ux.ie, Fabian Frederick <fabf@...net.be>,
	dri-devel@...ts.freedesktop.org
Subject: [PATCH 7/9 linux-next] drm/gma500: use container_of to resolve psb_fbdev from drm_fb_helper

Use container_of instead of casting first structure member.

Signed-off-by: Fabian Frederick <fabf@...net.be>
---
Compiled but untested.

 drivers/gpu/drm/gma500/framebuffer.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/gma500/framebuffer.c b/drivers/gpu/drm/gma500/framebuffer.c
index d0dd3be..ddd90dd 100644
--- a/drivers/gpu/drm/gma500/framebuffer.c
+++ b/drivers/gpu/drm/gma500/framebuffer.c
@@ -540,7 +540,8 @@ static void psbfb_gamma_get(struct drm_crtc *crtc, u16 *red,
 static int psbfb_probe(struct drm_fb_helper *helper,
 				struct drm_fb_helper_surface_size *sizes)
 {
-	struct psb_fbdev *psb_fbdev = (struct psb_fbdev *)helper;
+	struct psb_fbdev *psb_fbdev =
+		container_of(helper, struct psb_fbdev, psb_fb_helper);
 	struct drm_device *dev = psb_fbdev->psb_fb_helper.dev;
 	struct drm_psb_private *dev_priv = dev->dev_private;
 	int bytespp;
-- 
1.9.1

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