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drm/rockchip: return ERR_PTR instead of NULL 

rockchip_drm_framebuffer_init is only used in one case, in
rockchip_drm_fbdev.c, where its return value is tested using IS_ERR.  To
enable propagating the reason for the error, change the definition so that
it returns an ERR_PTR value.

Problem found with the help of Coccinelle.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
This commit is contained in:
Julia Lawall 2016-11-10 22:10:56 +01:00 committed by Mark Yao
parent 17a794d768
commit 5a2c920c99
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/rockchip/rockchip_drm_fb.c
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@ -213,7 +213,7 @@ rockchip_drm_framebuffer_init(struct drm_device *dev,
rockchip_fb = rockchip_fb_alloc(dev, mode_cmd, &obj, 1); rockchip_fb = rockchip_fb_alloc(dev, mode_cmd, &obj, 1);
if (IS_ERR(rockchip_fb)) if (IS_ERR(rockchip_fb))
return NULL; return ERR_CAST(rockchip_fb);
return &rockchip_fb->fb; return &rockchip_fb->fb;
} }