diff mbox series

[7/8] media: rzg2l-cru: rzg2l-core: Use temporary variable for struct device in rzg2l_cru_probe()

Message ID 20250210114540.524790-8-tommaso.merciai.xr@bp.renesas.com (mailing list archive)
State New
Delegated to: Kieran Bingham
Headers show
Series media: rzg2l-cru: Document RZ/G3E (CSI2, CRU) | expand

Commit Message

Tommaso Merciai Feb. 10, 2025, 11:45 a.m. UTC 
From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>

Use a temporary variable for the struct device pointers to avoid
dereferencing.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Signed-off-by: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com>
---
 .../platform/renesas/rzg2l-cru/rzg2l-core.c   | 29 ++++++++++---------
 1 file changed, 15 insertions(+), 14 deletions(-)

Comments

Biju Das Feb. 10, 2025, 11:56 a.m. UTC | #1 
Hi Tommaso Merciai,

> -----Original Message-----
> From: Tommaso Merciai <tomm.merciai@gmail.com>
> Sent: 10 February 2025 11:46
> Subject: [PATCH 7/8] media: rzg2l-cru: rzg2l-core: Use temporary variable for struct device in
> rzg2l_cru_probe()
> 
> From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> 
> Use a temporary variable for the struct device pointers to avoid dereferencing.
> 
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> Signed-off-by: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com>

Reviewed-by: Biju Das <biju.das.jz@bp.renesas.com>

Cheers,
Biju

> ---
>  .../platform/renesas/rzg2l-cru/rzg2l-core.c   | 29 ++++++++++---------
>  1 file changed, 15 insertions(+), 14 deletions(-)
> 
> diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-core.c
> b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-core.c
> index 89be584a4988..70fed0ce45ea 100644
> --- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-core.c
> +++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-core.c
> @@ -240,10 +240,11 @@ static int rzg2l_cru_media_init(struct rzg2l_cru_dev *cru)
> 
>  static int rzg2l_cru_probe(struct platform_device *pdev)  {
> +	struct device *dev = &pdev->dev;
>  	struct rzg2l_cru_dev *cru;
>  	int irq, ret;
> 
> -	cru = devm_kzalloc(&pdev->dev, sizeof(*cru), GFP_KERNEL);
> +	cru = devm_kzalloc(dev, sizeof(*cru), GFP_KERNEL);
>  	if (!cru)
>  		return -ENOMEM;
> 
> @@ -251,32 +252,32 @@ static int rzg2l_cru_probe(struct platform_device *pdev)
>  	if (IS_ERR(cru->base))
>  		return PTR_ERR(cru->base);
> 
> -	cru->presetn = devm_reset_control_get_shared(&pdev->dev, "presetn");
> +	cru->presetn = devm_reset_control_get_shared(dev, "presetn");
>  	if (IS_ERR(cru->presetn))
> -		return dev_err_probe(&pdev->dev, PTR_ERR(cru->presetn),
> +		return dev_err_probe(dev, PTR_ERR(cru->presetn),
>  				     "Failed to get cpg presetn\n");
> 
> -	cru->aresetn = devm_reset_control_get_exclusive(&pdev->dev, "aresetn");
> +	cru->aresetn = devm_reset_control_get_exclusive(dev, "aresetn");
>  	if (IS_ERR(cru->aresetn))
> -		return dev_err_probe(&pdev->dev, PTR_ERR(cru->aresetn),
> +		return dev_err_probe(dev, PTR_ERR(cru->aresetn),
>  				     "Failed to get cpg aresetn\n");
> 
> -	cru->vclk = devm_clk_get(&pdev->dev, "video");
> +	cru->vclk = devm_clk_get(dev, "video");
>  	if (IS_ERR(cru->vclk))
> -		return dev_err_probe(&pdev->dev, PTR_ERR(cru->vclk),
> +		return dev_err_probe(dev, PTR_ERR(cru->vclk),
>  				     "Failed to get video clock\n");
> 
> -	cru->dev = &pdev->dev;
> -	cru->info = of_device_get_match_data(&pdev->dev);
> +	cru->dev = dev;
> +	cru->info = of_device_get_match_data(dev);
> 
>  	irq = platform_get_irq(pdev, 0);
>  	if (irq < 0)
>  		return irq;
> 
> -	ret = devm_request_irq(&pdev->dev, irq, rzg2l_cru_irq, 0,
> +	ret = devm_request_irq(dev, irq, rzg2l_cru_irq, 0,
>  			       KBUILD_MODNAME, cru);
>  	if (ret)
> -		return dev_err_probe(&pdev->dev, ret, "failed to request irq\n");
> +		return dev_err_probe(dev, ret, "failed to request irq\n");
> 
>  	platform_set_drvdata(pdev, cru);
> 
> @@ -285,8 +286,8 @@ static int rzg2l_cru_probe(struct platform_device *pdev)
>  		return ret;
> 
>  	cru->num_buf = RZG2L_CRU_HW_BUFFER_DEFAULT;
> -	pm_suspend_ignore_children(&pdev->dev, true);
> -	pm_runtime_enable(&pdev->dev);
> +	pm_suspend_ignore_children(dev, true);
> +	pm_runtime_enable(dev);
> 
>  	ret = rzg2l_cru_media_init(cru);
>  	if (ret)
> @@ -296,7 +297,7 @@ static int rzg2l_cru_probe(struct platform_device *pdev)
> 
>  error_dma_unregister:
>  	rzg2l_cru_dma_unregister(cru);
> -	pm_runtime_disable(&pdev->dev);
> +	pm_runtime_disable(dev);
> 
>  	return ret;
>  }
> --
> 2.34.1
Laurent Pinchart Feb. 14, 2025, 12:49 a.m. UTC | #2 
Hi Tommaso, Prabhakar,

Thank you for the patch.

On Mon, Feb 10, 2025 at 12:45:39PM +0100, Tommaso Merciai wrote:
> From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> 
> Use a temporary variable for the struct device pointers to avoid
> dereferencing.

Same comments as for 5/8.

Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> Signed-off-by: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com>
> ---
>  .../platform/renesas/rzg2l-cru/rzg2l-core.c   | 29 ++++++++++---------
>  1 file changed, 15 insertions(+), 14 deletions(-)
> 
> diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-core.c b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-core.c
> index 89be584a4988..70fed0ce45ea 100644
> --- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-core.c
> +++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-core.c
> @@ -240,10 +240,11 @@ static int rzg2l_cru_media_init(struct rzg2l_cru_dev *cru)
>  
>  static int rzg2l_cru_probe(struct platform_device *pdev)
>  {
> +	struct device *dev = &pdev->dev;
>  	struct rzg2l_cru_dev *cru;
>  	int irq, ret;
>  
> -	cru = devm_kzalloc(&pdev->dev, sizeof(*cru), GFP_KERNEL);
> +	cru = devm_kzalloc(dev, sizeof(*cru), GFP_KERNEL);
>  	if (!cru)
>  		return -ENOMEM;
>  
> @@ -251,32 +252,32 @@ static int rzg2l_cru_probe(struct platform_device *pdev)
>  	if (IS_ERR(cru->base))
>  		return PTR_ERR(cru->base);
>  
> -	cru->presetn = devm_reset_control_get_shared(&pdev->dev, "presetn");
> +	cru->presetn = devm_reset_control_get_shared(dev, "presetn");
>  	if (IS_ERR(cru->presetn))
> -		return dev_err_probe(&pdev->dev, PTR_ERR(cru->presetn),
> +		return dev_err_probe(dev, PTR_ERR(cru->presetn),
>  				     "Failed to get cpg presetn\n");
>  
> -	cru->aresetn = devm_reset_control_get_exclusive(&pdev->dev, "aresetn");
> +	cru->aresetn = devm_reset_control_get_exclusive(dev, "aresetn");
>  	if (IS_ERR(cru->aresetn))
> -		return dev_err_probe(&pdev->dev, PTR_ERR(cru->aresetn),
> +		return dev_err_probe(dev, PTR_ERR(cru->aresetn),
>  				     "Failed to get cpg aresetn\n");
>  
> -	cru->vclk = devm_clk_get(&pdev->dev, "video");
> +	cru->vclk = devm_clk_get(dev, "video");
>  	if (IS_ERR(cru->vclk))
> -		return dev_err_probe(&pdev->dev, PTR_ERR(cru->vclk),
> +		return dev_err_probe(dev, PTR_ERR(cru->vclk),
>  				     "Failed to get video clock\n");
>  
> -	cru->dev = &pdev->dev;
> -	cru->info = of_device_get_match_data(&pdev->dev);
> +	cru->dev = dev;
> +	cru->info = of_device_get_match_data(dev);
>  
>  	irq = platform_get_irq(pdev, 0);
>  	if (irq < 0)
>  		return irq;
>  
> -	ret = devm_request_irq(&pdev->dev, irq, rzg2l_cru_irq, 0,
> +	ret = devm_request_irq(dev, irq, rzg2l_cru_irq, 0,
>  			       KBUILD_MODNAME, cru);
>  	if (ret)
> -		return dev_err_probe(&pdev->dev, ret, "failed to request irq\n");
> +		return dev_err_probe(dev, ret, "failed to request irq\n");
>  
>  	platform_set_drvdata(pdev, cru);
>  
> @@ -285,8 +286,8 @@ static int rzg2l_cru_probe(struct platform_device *pdev)
>  		return ret;
>  
>  	cru->num_buf = RZG2L_CRU_HW_BUFFER_DEFAULT;
> -	pm_suspend_ignore_children(&pdev->dev, true);
> -	pm_runtime_enable(&pdev->dev);
> +	pm_suspend_ignore_children(dev, true);
> +	pm_runtime_enable(dev);
>  
>  	ret = rzg2l_cru_media_init(cru);
>  	if (ret)
> @@ -296,7 +297,7 @@ static int rzg2l_cru_probe(struct platform_device *pdev)
>  
>  error_dma_unregister:
>  	rzg2l_cru_dma_unregister(cru);
> -	pm_runtime_disable(&pdev->dev);
> +	pm_runtime_disable(dev);
>  
>  	return ret;
>  }
diff mbox series

Patch

diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-core.c b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-core.c
index 89be584a4988..70fed0ce45ea 100644
--- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-core.c
+++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-core.c
@@ -240,10 +240,11 @@  static int rzg2l_cru_media_init(struct rzg2l_cru_dev *cru)
 
 static int rzg2l_cru_probe(struct platform_device *pdev)
 {
+	struct device *dev = &pdev->dev;
 	struct rzg2l_cru_dev *cru;
 	int irq, ret;
 
-	cru = devm_kzalloc(&pdev->dev, sizeof(*cru), GFP_KERNEL);
+	cru = devm_kzalloc(dev, sizeof(*cru), GFP_KERNEL);
 	if (!cru)
 		return -ENOMEM;
 
@@ -251,32 +252,32 @@  static int rzg2l_cru_probe(struct platform_device *pdev)
 	if (IS_ERR(cru->base))
 		return PTR_ERR(cru->base);
 
-	cru->presetn = devm_reset_control_get_shared(&pdev->dev, "presetn");
+	cru->presetn = devm_reset_control_get_shared(dev, "presetn");
 	if (IS_ERR(cru->presetn))
-		return dev_err_probe(&pdev->dev, PTR_ERR(cru->presetn),
+		return dev_err_probe(dev, PTR_ERR(cru->presetn),
 				     "Failed to get cpg presetn\n");
 
-	cru->aresetn = devm_reset_control_get_exclusive(&pdev->dev, "aresetn");
+	cru->aresetn = devm_reset_control_get_exclusive(dev, "aresetn");
 	if (IS_ERR(cru->aresetn))
-		return dev_err_probe(&pdev->dev, PTR_ERR(cru->aresetn),
+		return dev_err_probe(dev, PTR_ERR(cru->aresetn),
 				     "Failed to get cpg aresetn\n");
 
-	cru->vclk = devm_clk_get(&pdev->dev, "video");
+	cru->vclk = devm_clk_get(dev, "video");
 	if (IS_ERR(cru->vclk))
-		return dev_err_probe(&pdev->dev, PTR_ERR(cru->vclk),
+		return dev_err_probe(dev, PTR_ERR(cru->vclk),
 				     "Failed to get video clock\n");
 
-	cru->dev = &pdev->dev;
-	cru->info = of_device_get_match_data(&pdev->dev);
+	cru->dev = dev;
+	cru->info = of_device_get_match_data(dev);
 
 	irq = platform_get_irq(pdev, 0);
 	if (irq < 0)
 		return irq;
 
-	ret = devm_request_irq(&pdev->dev, irq, rzg2l_cru_irq, 0,
+	ret = devm_request_irq(dev, irq, rzg2l_cru_irq, 0,
 			       KBUILD_MODNAME, cru);
 	if (ret)
-		return dev_err_probe(&pdev->dev, ret, "failed to request irq\n");
+		return dev_err_probe(dev, ret, "failed to request irq\n");
 
 	platform_set_drvdata(pdev, cru);
 
@@ -285,8 +286,8 @@  static int rzg2l_cru_probe(struct platform_device *pdev)
 		return ret;
 
 	cru->num_buf = RZG2L_CRU_HW_BUFFER_DEFAULT;
-	pm_suspend_ignore_children(&pdev->dev, true);
-	pm_runtime_enable(&pdev->dev);
+	pm_suspend_ignore_children(dev, true);
+	pm_runtime_enable(dev);
 
 	ret = rzg2l_cru_media_init(cru);
 	if (ret)
@@ -296,7 +297,7 @@  static int rzg2l_cru_probe(struct platform_device *pdev)
 
 error_dma_unregister:
 	rzg2l_cru_dma_unregister(cru);
-	pm_runtime_disable(&pdev->dev);
+	pm_runtime_disable(dev);
 
 	return ret;
 }