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[-next] drm/hisilicon: Fix error handling of ade_power_up()

Message ID 1468927815-737-1-git-send-email-weiyj_lk@163.com (mailing list archive)
State New, archived
Headers show

Commit Message

weiyj_lk@163.com July 19, 2016, 11:30 a.m. UTC
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>

Fix the reset_control_deassert() fail and clk_prepare_enable() fail
error handling of ade_power_up().

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
---
 drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

Comments

Xinliang Liu July 26, 2016, 3:09 a.m. UTC | #1
On 19 July 2016 at 19:30, Wei Yongjun <weiyj_lk@163.com> wrote:
> From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
>
> Fix the reset_control_deassert() fail and clk_prepare_enable() fail
> error handling of ade_power_up().
>
> Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>

Applied, thanks.

-xinliang

> ---
>  drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c | 10 ++++++++--
>  1 file changed, 8 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c
> index c3707d4..e2bd1e6 100644
> --- a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c
> +++ b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c
> @@ -258,18 +258,24 @@ static int ade_power_up(struct ade_hw_ctx *ctx)
>         ret = reset_control_deassert(ctx->reset);
>         if (ret) {
>                 DRM_ERROR("failed to deassert reset\n");
> -               return ret;
> +               goto err_reset;
>         }
>
>         ret = clk_prepare_enable(ctx->ade_core_clk);
>         if (ret) {
>                 DRM_ERROR("failed to enable ade_core_clk (%d)\n", ret);
> -               return ret;
> +               goto err_prepare_enable;
>         }
>
>         ade_init(ctx);
>         ctx->power_on = true;
>         return 0;
> +
> +err_prepare_enable:
> +       reset_control_assert(ctx->reset);
> +err_reset:
> +       clk_disable_unprepare(ctx->media_noc_clk);
> +       return ret;
>  }
>
>  static void ade_power_down(struct ade_hw_ctx *ctx)
>
>
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
diff mbox

Patch

diff --git a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c
index c3707d4..e2bd1e6 100644
--- a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c
+++ b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c
@@ -258,18 +258,24 @@  static int ade_power_up(struct ade_hw_ctx *ctx)
 	ret = reset_control_deassert(ctx->reset);
 	if (ret) {
 		DRM_ERROR("failed to deassert reset\n");
-		return ret;
+		goto err_reset;
 	}
 
 	ret = clk_prepare_enable(ctx->ade_core_clk);
 	if (ret) {
 		DRM_ERROR("failed to enable ade_core_clk (%d)\n", ret);
-		return ret;
+		goto err_prepare_enable;
 	}
 
 	ade_init(ctx);
 	ctx->power_on = true;
 	return 0;
+
+err_prepare_enable:
+	reset_control_assert(ctx->reset);
+err_reset:
+	clk_disable_unprepare(ctx->media_noc_clk);
+	return ret;
 }
 
 static void ade_power_down(struct ade_hw_ctx *ctx)