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

Joonyoung Shim
2015-02-05T08:29:04Z

Hi,

On 02/05/2015 06:00 AM, SF Markus Elfring wrote:
> From: Markus Elfring <elfring@users.sourceforge.net>
> 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@users.sourceforge.net>
> ---
> 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@samsung.com>

Thanks.