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[2/2] media: sunxi: Fix some error handling path of sun6i_mipi_csi2_probe()

Message ID 9999a30560d0ab8201734cbab0483c6f840402da.1659295329.git.christophe.jaillet@wanadoo.fr
State Accepted
Commit 51e1440d309a74a3e4e252019a00f9d0df329945
Headers show
Series [1/2] media: sunxi: Fix some error handling path of sun8i_a83t_mipi_csi2_probe() | expand

Commit Message

Christophe JAILLET July 31, 2022, 7:22 p.m. UTC
Release some resources in the error handling path of the probe and of
sun6i_mipi_csi2_resources_setup(), as already done in the remove
function.

Fixes: af54b4f4c17f ("media: sunxi: Add support for the A31 MIPI CSI-2 controller")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
---
 .../sunxi/sun6i-mipi-csi2/sun6i_mipi_csi2.c    | 18 ++++++++++++++----
 1 file changed, 14 insertions(+), 4 deletions(-)

Comments

Paul Kocialkowski Aug. 5, 2022, 2:11 p.m. UTC | #1
Hi Christophe,

On Sun 31 Jul 22, 21:22, Christophe JAILLET wrote:
> Release some resources in the error handling path of the probe and of
> sun6i_mipi_csi2_resources_setup(), as already done in the remove
> function.

Thanks again, my comments are the same as in the other patch!

> Fixes: af54b4f4c17f ("media: sunxi: Add support for the A31 MIPI CSI-2 controller")
> Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
> ---
>  .../sunxi/sun6i-mipi-csi2/sun6i_mipi_csi2.c    | 18 ++++++++++++++----
>  1 file changed, 14 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/media/platform/sunxi/sun6i-mipi-csi2/sun6i_mipi_csi2.c b/drivers/media/platform/sunxi/sun6i-mipi-csi2/sun6i_mipi_csi2.c
> index a4e3f9a6b2ff..1ee8501e25f6 100644
> --- a/drivers/media/platform/sunxi/sun6i-mipi-csi2/sun6i_mipi_csi2.c
> +++ b/drivers/media/platform/sunxi/sun6i-mipi-csi2/sun6i_mipi_csi2.c
> @@ -661,7 +661,8 @@ sun6i_mipi_csi2_resources_setup(struct sun6i_mipi_csi2_device *csi2_dev,
>  	csi2_dev->reset = devm_reset_control_get_shared(dev, NULL);
>  	if (IS_ERR(csi2_dev->reset)) {
>  		dev_err(dev, "failed to get reset controller\n");
> -		return PTR_ERR(csi2_dev->reset);
> +		ret = PTR_ERR(csi2_dev->reset);
> +		goto err_put_clk_rate;
>  	}
>  
>  	/* D-PHY */
> @@ -669,13 +670,14 @@ sun6i_mipi_csi2_resources_setup(struct sun6i_mipi_csi2_device *csi2_dev,
>  	csi2_dev->dphy = devm_phy_get(dev, "dphy");
>  	if (IS_ERR(csi2_dev->dphy)) {
>  		dev_err(dev, "failed to get MIPI D-PHY\n");
> -		return PTR_ERR(csi2_dev->dphy);
> +		ret = PTR_ERR(csi2_dev->dphy);
> +		goto err_put_clk_rate;
>  	}
>  
>  	ret = phy_init(csi2_dev->dphy);
>  	if (ret) {
>  		dev_err(dev, "failed to initialize MIPI D-PHY\n");
> -		return ret;
> +		goto err_put_clk_rate;
>  	}
>  
>  	/* Runtime PM */
> @@ -683,6 +685,10 @@ sun6i_mipi_csi2_resources_setup(struct sun6i_mipi_csi2_device *csi2_dev,
>  	pm_runtime_enable(dev);
>  
>  	return 0;
> +
> +err_put_clk_rate:

Please call this "error_clock_rate_exclusive",

> +	clk_rate_exclusive_put(csi2_dev->clock_mod);

and add a blank line here.

> +	return ret;
>  }
>  
>  static void
> @@ -712,9 +718,13 @@ static int sun6i_mipi_csi2_probe(struct platform_device *platform_dev)
>  
>  	ret = sun6i_mipi_csi2_bridge_setup(csi2_dev);
>  	if (ret)
> -		return ret;
> +		goto err_cleanup_resources;
>  
>  	return 0;
> +
> +err_cleanup_resources:

Please call this "error_resources",

> +	sun6i_mipi_csi2_resources_cleanup(csi2_dev);

and add a blank line here.

Thanks,

Paul

> +	return ret;
>  }
>  
>  static int sun6i_mipi_csi2_remove(struct platform_device *platform_dev)
> -- 
> 2.34.1
>
diff mbox series

Patch

diff --git a/drivers/media/platform/sunxi/sun6i-mipi-csi2/sun6i_mipi_csi2.c b/drivers/media/platform/sunxi/sun6i-mipi-csi2/sun6i_mipi_csi2.c
index a4e3f9a6b2ff..1ee8501e25f6 100644
--- a/drivers/media/platform/sunxi/sun6i-mipi-csi2/sun6i_mipi_csi2.c
+++ b/drivers/media/platform/sunxi/sun6i-mipi-csi2/sun6i_mipi_csi2.c
@@ -661,7 +661,8 @@  sun6i_mipi_csi2_resources_setup(struct sun6i_mipi_csi2_device *csi2_dev,
 	csi2_dev->reset = devm_reset_control_get_shared(dev, NULL);
 	if (IS_ERR(csi2_dev->reset)) {
 		dev_err(dev, "failed to get reset controller\n");
-		return PTR_ERR(csi2_dev->reset);
+		ret = PTR_ERR(csi2_dev->reset);
+		goto err_put_clk_rate;
 	}
 
 	/* D-PHY */
@@ -669,13 +670,14 @@  sun6i_mipi_csi2_resources_setup(struct sun6i_mipi_csi2_device *csi2_dev,
 	csi2_dev->dphy = devm_phy_get(dev, "dphy");
 	if (IS_ERR(csi2_dev->dphy)) {
 		dev_err(dev, "failed to get MIPI D-PHY\n");
-		return PTR_ERR(csi2_dev->dphy);
+		ret = PTR_ERR(csi2_dev->dphy);
+		goto err_put_clk_rate;
 	}
 
 	ret = phy_init(csi2_dev->dphy);
 	if (ret) {
 		dev_err(dev, "failed to initialize MIPI D-PHY\n");
-		return ret;
+		goto err_put_clk_rate;
 	}
 
 	/* Runtime PM */
@@ -683,6 +685,10 @@  sun6i_mipi_csi2_resources_setup(struct sun6i_mipi_csi2_device *csi2_dev,
 	pm_runtime_enable(dev);
 
 	return 0;
+
+err_put_clk_rate:
+	clk_rate_exclusive_put(csi2_dev->clock_mod);
+	return ret;
 }
 
 static void
@@ -712,9 +718,13 @@  static int sun6i_mipi_csi2_probe(struct platform_device *platform_dev)
 
 	ret = sun6i_mipi_csi2_bridge_setup(csi2_dev);
 	if (ret)
-		return ret;
+		goto err_cleanup_resources;
 
 	return 0;
+
+err_cleanup_resources:
+	sun6i_mipi_csi2_resources_cleanup(csi2_dev);
+	return ret;
 }
 
 static int sun6i_mipi_csi2_remove(struct platform_device *platform_dev)