Re: [PATCH] GPU-DRM-Exynos: Delete unnecessary checks before two function calls

[Joonyoung Shim]

Hi,

On 02/05/2015 06:00 AM, SF Markus Elfring wrote:
> From: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
> Date: Wed, 4 Feb 2015 21:54:45 +0100
> 
> The functions phy_power_on() and vunmap() perform also input
> parameter validation. Thus the test around their calls is not needed.
> 
> This issue was detected by using the Coccinelle software.
> 
> Signed-off-by: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
> ---
>  drivers/gpu/drm/exynos/exynos_dp_core.c   | 6 ++----
>  drivers/gpu/drm/exynos/exynos_drm_fbdev.c | 2 +-
>  2 files changed, 3 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/gpu/drm/exynos/exynos_dp_core.c b/drivers/gpu/drm/exynos/exynos_dp_core.c
> index 34d46aa..306cf1d 100644
> --- a/drivers/gpu/drm/exynos/exynos_dp_core.c
> +++ b/drivers/gpu/drm/exynos/exynos_dp_core.c
> @@ -1057,14 +1057,12 @@ static int exynos_dp_create_connector(struct exynos_drm_display *display,
>  
>  static void exynos_dp_phy_init(struct exynos_dp_device *dp)
>  {
> -	if (dp->phy)
> -		phy_power_on(dp->phy);
> +	phy_power_on(dp->phy);
>  }
>  
>  static void exynos_dp_phy_exit(struct exynos_dp_device *dp)
>  {
> -	if (dp->phy)
> -		phy_power_off(dp->phy);
> +	phy_power_off(dp->phy);
>  }
>  
>  static void exynos_dp_poweron(struct exynos_drm_display *display)
> diff --git a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c
> index e12ea90..0dd448a 100644
> --- a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c
> +++ b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c
> @@ -313,7 +313,7 @@ static void exynos_drm_fbdev_destroy(struct drm_device *dev,
>  	struct exynos_drm_gem_obj *exynos_gem_obj = exynos_fbd->exynos_gem_obj;
>  	struct drm_framebuffer *fb;
>  
> -	if (is_drm_iommu_supported(dev) && exynos_gem_obj->buffer->kvaddr)
> +	if (is_drm_iommu_supported(dev))
>  		vunmap(exynos_gem_obj->buffer->kvaddr);
>  
>  	/* release drm framebuffer and real buffer */
> 

Acked-by: Joonyoung Shim <jy0922.shim@xxxxxxxxxxx>

Thanks.
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