[PATCH] drm/exynos: fix checks for valid mixer window
Inki Dae
inki.dae at samsung.com
Sun May 26 23:18:58 PDT 2013
Applied.
Thanks,
Inki Dae
2013/5/27 Seung-Woo Kim <sw0312.kim at samsung.com>
> From: Krzysztof Kozlowski <k.kozlowski at samsung.com>
>
> Valid values for mixer window are from 0 to MIXER_WIN_NR-1 inclusive.
> Arrays in structures (e.g. mixer_context.win_data) have size of
> MIXER_WIN_NR so checks for wrong mixer window must be greater-equal.
>
> Signed-off-by: Krzysztof Kozlowski <k.kozlowski at samsung.com>
> Signed-off-by: Hyunhee Kim <hyunhee.kim at samsung.com>
> Signed-off-by: Seung-Woo Kim <sw0312.kim at samsung.com>
> ---
> drivers/gpu/drm/exynos/exynos_drm_hdmi.c | 4 ++--
> drivers/gpu/drm/exynos/exynos_mixer.c | 2 +-
> 2 files changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/gpu/drm/exynos/exynos_drm_hdmi.c
> b/drivers/gpu/drm/exynos/exynos_drm_hdmi.c
> index 437fb94..b9b2726 100644
> --- a/drivers/gpu/drm/exynos/exynos_drm_hdmi.c
> +++ b/drivers/gpu/drm/exynos/exynos_drm_hdmi.c
> @@ -344,7 +344,7 @@ static void drm_mixer_commit(struct device
> *subdrv_dev, int zpos)
>
> DRM_DEBUG_KMS("%s\n", __FILE__);
>
> - if (win < 0 || win > MIXER_WIN_NR) {
> + if (win < 0 || win >= MIXER_WIN_NR) {
> DRM_ERROR("mixer window[%d] is wrong\n", win);
> return;
> }
> @@ -362,7 +362,7 @@ static void drm_mixer_disable(struct device
> *subdrv_dev, int zpos)
>
> DRM_DEBUG_KMS("%s\n", __FILE__);
>
> - if (win < 0 || win > MIXER_WIN_NR) {
> + if (win < 0 || win >= MIXER_WIN_NR) {
> DRM_ERROR("mixer window[%d] is wrong\n", win);
> return;
> }
> diff --git a/drivers/gpu/drm/exynos/exynos_mixer.c
> b/drivers/gpu/drm/exynos/exynos_mixer.c
> index 7c197d38..3658e07 100644
> --- a/drivers/gpu/drm/exynos/exynos_mixer.c
> +++ b/drivers/gpu/drm/exynos/exynos_mixer.c
> @@ -742,7 +742,7 @@ static void mixer_win_mode_set(void *ctx,
> if (win == DEFAULT_ZPOS)
> win = MIXER_DEFAULT_WIN;
>
> - if (win < 0 || win > MIXER_WIN_NR) {
> + if (win < 0 || win >= MIXER_WIN_NR) {
> DRM_ERROR("mixer window[%d] is wrong\n", win);
> return;
> }
> --
> 1.7.4.1
>
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>
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