diff mbox

drm/exynos: remove ignoring return value warning in hdmi

Message ID 1370410478-32221-1-git-send-email-sw0312.kim@samsung.com (mailing list archive)
State New, archived
Headers show

Commit Message

Seung-Woo Kim June 5, 2013, 5:34 a.m. UTC
The definition of regulator_bulk_enable is fixed with __must_check
and this causes following build warning.
warning: ignoring return value of 'regulator_bulk_enable',
declared with attribute warn_unused_result
This patch fixes to check return value of the function.

Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com>
---
 drivers/gpu/drm/exynos/exynos_hdmi.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

Comments

Inki Dae June 5, 2013, 7:24 a.m. UTC | #1
2013/6/5 Seung-Woo Kim <sw0312.kim@samsung.com>

> The definition of regulator_bulk_enable is fixed with __must_check
> and this causes following build warning.
> warning: ignoring return value of 'regulator_bulk_enable',
> declared with attribute warn_unused_result
> This patch fixes to check return value of the function.
>
> Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com>
> ---
>  drivers/gpu/drm/exynos/exynos_hdmi.c |    4 +++-
>  1 files changed, 3 insertions(+), 1 deletions(-)
>
> diff --git a/drivers/gpu/drm/exynos/exynos_hdmi.c
> b/drivers/gpu/drm/exynos/exynos_hdmi.c
> index 2f78532..f807b13 100644
> --- a/drivers/gpu/drm/exynos/exynos_hdmi.c
> +++ b/drivers/gpu/drm/exynos/exynos_hdmi.c
> @@ -1699,7 +1699,9 @@ static void hdmi_poweron(struct hdmi_context *hdata)
>
>         mutex_unlock(&hdata->hdmi_mutex);
>
> -       regulator_bulk_enable(res->regul_count, res->regul_bulk);
> +       if (regulator_bulk_enable(res->regul_count, res->regul_bulk))
> +               DRM_ERROR("failed to enable regulator bulk\n");
>

Now it's not error case; having no return type, so just changed it into
DRM_DEBUG_KMS. However, we need to add more exception codes to this
function later.

Applied.

Thanks,
Inki Dae


> +
>         clk_enable(res->hdmiphy);
>         clk_enable(res->hdmi);
>         clk_enable(res->sclk_hdmi);
> --
> 1.7.4.1
>
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/dri-devel
>
diff mbox

Patch

diff --git a/drivers/gpu/drm/exynos/exynos_hdmi.c b/drivers/gpu/drm/exynos/exynos_hdmi.c
index 2f78532..f807b13 100644
--- a/drivers/gpu/drm/exynos/exynos_hdmi.c
+++ b/drivers/gpu/drm/exynos/exynos_hdmi.c
@@ -1699,7 +1699,9 @@  static void hdmi_poweron(struct hdmi_context *hdata)
 
 	mutex_unlock(&hdata->hdmi_mutex);
 
-	regulator_bulk_enable(res->regul_count, res->regul_bulk);
+	if (regulator_bulk_enable(res->regul_count, res->regul_bulk))
+		DRM_ERROR("failed to enable regulator bulk\n");
+
 	clk_enable(res->hdmiphy);
 	clk_enable(res->hdmi);
 	clk_enable(res->sclk_hdmi);