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From: Mark yao <mark.yao@rock-chips.com>
To: Christophe JAILLET <christophe.jaillet@wanadoo.fr>,
	airlied@linux.ie, heiko@sntech.de
Cc: dri-devel@lists.freedesktop.org,
	linux-arm-kernel@lists.infradead.org,
	linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org,
	kernel-janitors@vger.kernel.org
Subject: Re: [PATCH v2] drm/rockchip: cdn-dp: Fix error handling
Date: Mon, 20 Feb 2017 15:34:31 +0800	[thread overview]
Message-ID: <58AA9C07.5070303@rock-chips.com> (raw)
In-Reply-To: <20170220070815.23096-1-christophe.jaillet@wanadoo.fr>

On 2017年02月20日 15:08, Christophe JAILLET wrote:
> It is likely that both 'clk_disable_unprepare()' should be called if
> 'pm_runtime_get_sync()' fails.
>
> Add a new label for that, because 'err_set_rate' is not meaningful in this
> case.
>
> Add a missing call to 'pm_runtime_put()'.
>
> Fixes: 1a0f7ed3abe2 ("drm/rockchip: cdn-dp: add cdn DP support for rk3399")
>
> Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>

looks good for me

Reviewed-by: Mark Yao <mark.yao@rock-chips.com>


> ---
> V2: rename label
>      add missing call to 'pm_runtime_put_sync()' in error path
> ---
>   drivers/gpu/drm/rockchip/cdn-dp-core.c | 3 ++-
>   1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/rockchip/cdn-dp-core.c b/drivers/gpu/drm/rockchip/cdn-dp-core.c
> index 9ab67a670885..0fe1ec8b8fb1 100644
> --- a/drivers/gpu/drm/rockchip/cdn-dp-core.c
> +++ b/drivers/gpu/drm/rockchip/cdn-dp-core.c
> @@ -111,7 +111,7 @@ static int cdn_dp_clk_enable(struct cdn_dp_device *dp)
>   	ret = pm_runtime_get_sync(dp->dev);
>   	if (ret < 0) {
>   		DRM_DEV_ERROR(dp->dev, "cannot get pm runtime %d\n", ret);
> -		goto err_pclk;
> +		goto err_pm_runtime_get;
>   	}
>   
>   	reset_control_assert(dp->core_rst);
> @@ -133,6 +133,8 @@ static int cdn_dp_clk_enable(struct cdn_dp_device *dp)
>   	return 0;
>   
>   err_set_rate:
> +	pm_runtime_put(dp->dev);
> +err_pm_runtime_get:
>   	clk_disable_unprepare(dp->core_clk);
>   err_core_clk:
>   	clk_disable_unprepare(dp->pclk);


-- 
Ｍark Yao

WARNING: multiple messages have this Message-ID (diff)
From: Mark yao <mark.yao@rock-chips.com>
To: Christophe JAILLET <christophe.jaillet@wanadoo.fr>,
	airlied@linux.ie, heiko@sntech.de
Cc: linux-rockchip@lists.infradead.org,
	kernel-janitors@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2] drm/rockchip: cdn-dp: Fix error handling
Date: Mon, 20 Feb 2017 07:34:31 +0000	[thread overview]
Message-ID: <58AA9C07.5070303@rock-chips.com> (raw)
In-Reply-To: <20170220070815.23096-1-christophe.jaillet@wanadoo.fr>

On 2017年02月20日 15:08, Christophe JAILLET wrote:
> It is likely that both 'clk_disable_unprepare()' should be called if
> 'pm_runtime_get_sync()' fails.
>
> Add a new label for that, because 'err_set_rate' is not meaningful in this
> case.
>
> Add a missing call to 'pm_runtime_put()'.
>
> Fixes: 1a0f7ed3abe2 ("drm/rockchip: cdn-dp: add cdn DP support for rk3399")
>
> Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>

looks good for me

Reviewed-by: Mark Yao <mark.yao@rock-chips.com>


> ---
> V2: rename label
>      add missing call to 'pm_runtime_put_sync()' in error path
> ---
>   drivers/gpu/drm/rockchip/cdn-dp-core.c | 3 ++-
>   1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/rockchip/cdn-dp-core.c b/drivers/gpu/drm/rockchip/cdn-dp-core.c
> index 9ab67a670885..0fe1ec8b8fb1 100644
> --- a/drivers/gpu/drm/rockchip/cdn-dp-core.c
> +++ b/drivers/gpu/drm/rockchip/cdn-dp-core.c
> @@ -111,7 +111,7 @@ static int cdn_dp_clk_enable(struct cdn_dp_device *dp)
>   	ret = pm_runtime_get_sync(dp->dev);
>   	if (ret < 0) {
>   		DRM_DEV_ERROR(dp->dev, "cannot get pm runtime %d\n", ret);
> -		goto err_pclk;
> +		goto err_pm_runtime_get;
>   	}
>   
>   	reset_control_assert(dp->core_rst);
> @@ -133,6 +133,8 @@ static int cdn_dp_clk_enable(struct cdn_dp_device *dp)
>   	return 0;
>   
>   err_set_rate:
> +	pm_runtime_put(dp->dev);
> +err_pm_runtime_get:
>   	clk_disable_unprepare(dp->core_clk);
>   err_core_clk:
>   	clk_disable_unprepare(dp->pclk);


-- 
Ｍark Yao



WARNING: multiple messages have this Message-ID (diff)
From: Mark yao <mark.yao@rock-chips.com>
To: Christophe JAILLET <christophe.jaillet@wanadoo.fr>,
	airlied@linux.ie, heiko@sntech.de
Cc: linux-rockchip@lists.infradead.org,
	kernel-janitors@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2] drm/rockchip: cdn-dp: Fix error handling
Date: Mon, 20 Feb 2017 15:34:31 +0800	[thread overview]
Message-ID: <58AA9C07.5070303@rock-chips.com> (raw)
In-Reply-To: <20170220070815.23096-1-christophe.jaillet@wanadoo.fr>

On 2017年02月20日 15:08, Christophe JAILLET wrote:
> It is likely that both 'clk_disable_unprepare()' should be called if
> 'pm_runtime_get_sync()' fails.
>
> Add a new label for that, because 'err_set_rate' is not meaningful in this
> case.
>
> Add a missing call to 'pm_runtime_put()'.
>
> Fixes: 1a0f7ed3abe2 ("drm/rockchip: cdn-dp: add cdn DP support for rk3399")
>
> Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>

looks good for me

Reviewed-by: Mark Yao <mark.yao@rock-chips.com>


> ---
> V2: rename label
>      add missing call to 'pm_runtime_put_sync()' in error path
> ---
>   drivers/gpu/drm/rockchip/cdn-dp-core.c | 3 ++-
>   1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/rockchip/cdn-dp-core.c b/drivers/gpu/drm/rockchip/cdn-dp-core.c
> index 9ab67a670885..0fe1ec8b8fb1 100644
> --- a/drivers/gpu/drm/rockchip/cdn-dp-core.c
> +++ b/drivers/gpu/drm/rockchip/cdn-dp-core.c
> @@ -111,7 +111,7 @@ static int cdn_dp_clk_enable(struct cdn_dp_device *dp)
>   	ret = pm_runtime_get_sync(dp->dev);
>   	if (ret < 0) {
>   		DRM_DEV_ERROR(dp->dev, "cannot get pm runtime %d\n", ret);
> -		goto err_pclk;
> +		goto err_pm_runtime_get;
>   	}
>   
>   	reset_control_assert(dp->core_rst);
> @@ -133,6 +133,8 @@ static int cdn_dp_clk_enable(struct cdn_dp_device *dp)
>   	return 0;
>   
>   err_set_rate:
> +	pm_runtime_put(dp->dev);
> +err_pm_runtime_get:
>   	clk_disable_unprepare(dp->core_clk);
>   err_core_clk:
>   	clk_disable_unprepare(dp->pclk);


-- 
Ｍark Yao


_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

WARNING: multiple messages have this Message-ID (diff)
From: mark.yao@rock-chips.com (Mark yao)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2] drm/rockchip: cdn-dp: Fix error handling
Date: Mon, 20 Feb 2017 15:34:31 +0800	[thread overview]
Message-ID: <58AA9C07.5070303@rock-chips.com> (raw)
In-Reply-To: <20170220070815.23096-1-christophe.jaillet@wanadoo.fr>

On 2017?02?20? 15:08, Christophe JAILLET wrote:
> It is likely that both 'clk_disable_unprepare()' should be called if
> 'pm_runtime_get_sync()' fails.
>
> Add a new label for that, because 'err_set_rate' is not meaningful in this
> case.
>
> Add a missing call to 'pm_runtime_put()'.
>
> Fixes: 1a0f7ed3abe2 ("drm/rockchip: cdn-dp: add cdn DP support for rk3399")
>
> Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>

looks good for me

Reviewed-by: Mark Yao <mark.yao@rock-chips.com>


> ---
> V2: rename label
>      add missing call to 'pm_runtime_put_sync()' in error path
> ---
>   drivers/gpu/drm/rockchip/cdn-dp-core.c | 3 ++-
>   1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/rockchip/cdn-dp-core.c b/drivers/gpu/drm/rockchip/cdn-dp-core.c
> index 9ab67a670885..0fe1ec8b8fb1 100644
> --- a/drivers/gpu/drm/rockchip/cdn-dp-core.c
> +++ b/drivers/gpu/drm/rockchip/cdn-dp-core.c
> @@ -111,7 +111,7 @@ static int cdn_dp_clk_enable(struct cdn_dp_device *dp)
>   	ret = pm_runtime_get_sync(dp->dev);
>   	if (ret < 0) {
>   		DRM_DEV_ERROR(dp->dev, "cannot get pm runtime %d\n", ret);
> -		goto err_pclk;
> +		goto err_pm_runtime_get;
>   	}
>   
>   	reset_control_assert(dp->core_rst);
> @@ -133,6 +133,8 @@ static int cdn_dp_clk_enable(struct cdn_dp_device *dp)
>   	return 0;
>   
>   err_set_rate:
> +	pm_runtime_put(dp->dev);
> +err_pm_runtime_get:
>   	clk_disable_unprepare(dp->core_clk);
>   err_core_clk:
>   	clk_disable_unprepare(dp->pclk);


-- 
?ark Yao

  reply	other threads:[~2017-02-20  7:34 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-02-20  7:08 [PATCH v2] drm/rockchip: cdn-dp: Fix error handling Christophe JAILLET
2017-02-20  7:08 ` Christophe JAILLET
2017-02-20  7:08 ` Christophe JAILLET
2017-02-20  7:34 ` Mark yao [this message]
2017-02-20  7:34   ` Mark yao
2017-02-20  7:34   ` Mark yao
2017-02-20  7:34   ` Mark yao
2017-02-23 16:48 ` Sean Paul
2017-02-23 16:48   ` Sean Paul
2017-02-23 16:48   ` Sean Paul
2017-02-23 16:48   ` Sean Paul

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