[PATCH v2] drm/exynos: Remove dev_err() on platform_get_irq() failure

[PATCH v2] drm/exynos: Remove dev_err() on platform_get_irq() failure

[Tamseel Shams]

platform_get_irq() will call dev_err() itself on failure,
so there is no need for the driver to also do this.
This is detected by coccinelle.

Also removing unnecessary curly braces around if () statement.

Signed-off-by: Tamseel Shams <m.shams@samsung.com>
---
Fixed review comment by joe@perches.com

 drivers/gpu/drm/exynos/exynos_drm_dsi.c     | 4 +---
 drivers/gpu/drm/exynos/exynos_drm_g2d.c     | 1 -
 drivers/gpu/drm/exynos/exynos_drm_rotator.c | 4 +---
 drivers/gpu/drm/exynos/exynos_drm_scaler.c  | 4 +---
 4 files changed, 3 insertions(+), 10 deletions(-)

diff --git a/drivers/gpu/drm/exynos/exynos_drm_dsi.c b/drivers/gpu/drm/exynos/exynos_drm_dsi.c
index 902938d2568f..958e2c6a6702 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_dsi.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_dsi.c
@@ -1809,10 +1809,8 @@ static int exynos_dsi_probe(struct platform_device *pdev)
 	}
 
 	dsi->irq = platform_get_irq(pdev, 0);
-	if (dsi->irq < 0) {
-		dev_err(dev, "failed to request dsi irq resource\n");
+	if (dsi->irq < 0)
 		return dsi->irq;
-	}
 
 	irq_set_status_flags(dsi->irq, IRQ_NOAUTOEN);
 	ret = devm_request_threaded_irq(dev, dsi->irq, NULL,
diff --git a/drivers/gpu/drm/exynos/exynos_drm_g2d.c b/drivers/gpu/drm/exynos/exynos_drm_g2d.c
index fcee33a43aca..03be31427181 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_g2d.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_g2d.c
@@ -1498,7 +1498,6 @@ static int g2d_probe(struct platform_device *pdev)
 
 	g2d->irq = platform_get_irq(pdev, 0);
 	if (g2d->irq < 0) {
-		dev_err(dev, "failed to get irq\n");
 		ret = g2d->irq;
 		goto err_put_clk;
 	}
diff --git a/drivers/gpu/drm/exynos/exynos_drm_rotator.c b/drivers/gpu/drm/exynos/exynos_drm_rotator.c
index dafa87b82052..2d94afba031e 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_rotator.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_rotator.c
@@ -293,10 +293,8 @@ static int rotator_probe(struct platform_device *pdev)
 		return PTR_ERR(rot->regs);
 
 	irq = platform_get_irq(pdev, 0);
-	if (irq < 0) {
-		dev_err(dev, "failed to get irq\n");
+	if (irq < 0)
 		return irq;
-	}
 
 	ret = devm_request_irq(dev, irq, rotator_irq_handler, 0, dev_name(dev),
 			       rot);
diff --git a/drivers/gpu/drm/exynos/exynos_drm_scaler.c b/drivers/gpu/drm/exynos/exynos_drm_scaler.c
index 93c43c8d914e..ce1857138f89 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_scaler.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_scaler.c
@@ -502,10 +502,8 @@ static int scaler_probe(struct platform_device *pdev)
 		return PTR_ERR(scaler->regs);
 
 	irq = platform_get_irq(pdev, 0);
-	if (irq < 0) {
-		dev_err(dev, "failed to get irq\n");
+	if (irq < 0)
 		return irq;
-	}
 
 	ret = devm_request_threaded_irq(dev, irq, NULL,	scaler_irq_handler,
 					IRQF_ONESHOT, "drm_scaler", scaler);
-- 
2.17.1


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Re: [PATCH v2] drm/exynos: Remove dev_err() on platform_get_irq() failure

[Inki Dae]

Hi Tamseel,

Same patch[1] has been merged. So could you re-post this patch after rebasing it on top of exynos-drm-next branch?
After rebase, only g2d part would be valid.

Thanks,
Inki Dae

[1] https://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos.git/commit/?h=exynos-drm-next&id=fdd79b0db1899f915f489e744a06846284fa3f1e

20. 5. 19. 오후 7:49에 Tamseel Shams 이(가) 쓴 글:
> platform_get_irq() will call dev_err() itself on failure,
> so there is no need for the driver to also do this.
> This is detected by coccinelle.
> 
> Also removing unnecessary curly braces around if () statement.
> 
> Signed-off-by: Tamseel Shams <m.shams@samsung.com>
> ---
> Fixed review comment by joe@perches.com
> 
>  drivers/gpu/drm/exynos/exynos_drm_dsi.c     | 4 +---
>  drivers/gpu/drm/exynos/exynos_drm_g2d.c     | 1 -
>  drivers/gpu/drm/exynos/exynos_drm_rotator.c | 4 +---
>  drivers/gpu/drm/exynos/exynos_drm_scaler.c  | 4 +---
>  4 files changed, 3 insertions(+), 10 deletions(-)
> 
> diff --git a/drivers/gpu/drm/exynos/exynos_drm_dsi.c b/drivers/gpu/drm/exynos/exynos_drm_dsi.c
> index 902938d2568f..958e2c6a6702 100644
> --- a/drivers/gpu/drm/exynos/exynos_drm_dsi.c
> +++ b/drivers/gpu/drm/exynos/exynos_drm_dsi.c
> @@ -1809,10 +1809,8 @@ static int exynos_dsi_probe(struct platform_device *pdev)
>  	}
>  
>  	dsi->irq = platform_get_irq(pdev, 0);
> -	if (dsi->irq < 0) {
> -		dev_err(dev, "failed to request dsi irq resource\n");
> +	if (dsi->irq < 0)
>  		return dsi->irq;
> -	}
>  
>  	irq_set_status_flags(dsi->irq, IRQ_NOAUTOEN);
>  	ret = devm_request_threaded_irq(dev, dsi->irq, NULL,
> diff --git a/drivers/gpu/drm/exynos/exynos_drm_g2d.c b/drivers/gpu/drm/exynos/exynos_drm_g2d.c
> index fcee33a43aca..03be31427181 100644
> --- a/drivers/gpu/drm/exynos/exynos_drm_g2d.c
> +++ b/drivers/gpu/drm/exynos/exynos_drm_g2d.c
> @@ -1498,7 +1498,6 @@ static int g2d_probe(struct platform_device *pdev)
>  
>  	g2d->irq = platform_get_irq(pdev, 0);
>  	if (g2d->irq < 0) {
> -		dev_err(dev, "failed to get irq\n");
>  		ret = g2d->irq;
>  		goto err_put_clk;
>  	}
> diff --git a/drivers/gpu/drm/exynos/exynos_drm_rotator.c b/drivers/gpu/drm/exynos/exynos_drm_rotator.c
> index dafa87b82052..2d94afba031e 100644
> --- a/drivers/gpu/drm/exynos/exynos_drm_rotator.c
> +++ b/drivers/gpu/drm/exynos/exynos_drm_rotator.c
> @@ -293,10 +293,8 @@ static int rotator_probe(struct platform_device *pdev)
>  		return PTR_ERR(rot->regs);
>  
>  	irq = platform_get_irq(pdev, 0);
> -	if (irq < 0) {
> -		dev_err(dev, "failed to get irq\n");
> +	if (irq < 0)
>  		return irq;
> -	}
>  
>  	ret = devm_request_irq(dev, irq, rotator_irq_handler, 0, dev_name(dev),
>  			       rot);
> diff --git a/drivers/gpu/drm/exynos/exynos_drm_scaler.c b/drivers/gpu/drm/exynos/exynos_drm_scaler.c
> index 93c43c8d914e..ce1857138f89 100644
> --- a/drivers/gpu/drm/exynos/exynos_drm_scaler.c
> +++ b/drivers/gpu/drm/exynos/exynos_drm_scaler.c
> @@ -502,10 +502,8 @@ static int scaler_probe(struct platform_device *pdev)
>  		return PTR_ERR(scaler->regs);
>  
>  	irq = platform_get_irq(pdev, 0);
> -	if (irq < 0) {
> -		dev_err(dev, "failed to get irq\n");
> +	if (irq < 0)
>  		return irq;
> -	}
>  
>  	ret = devm_request_threaded_irq(dev, irq, NULL,	scaler_irq_handler,
>  					IRQF_ONESHOT, "drm_scaler", scaler);
> 

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RE: [PATCH v2] drm/exynos: Remove dev_err() on platform_get_irq() failure

[M Tamseel Shams]

> -----Original Message-----
> From: Inki Dae <inki.dae@samsung.com>
> Sent: Wednesday, May 20, 2020 11:08 AM
> To: Tamseel Shams <m.shams@samsung.com>; jy0922.shim@samsung.com;
> sw0312.kim@samsung.com; kyungmin.park@samsung.com; airlied@linux.ie;
> daniel@ffwll.ch
> Cc: dri-devel@lists.freedesktop.org; linux-arm-kernel@lists.infradead.org; linux-
> samsung-soc@vger.kernel.org; linux-kernel@vger.kernel.org;
> shaik.ameer@samsung.com; krzk@kernel.org; alim.akhtar@samsung.com
> Subject: Re: [PATCH v2] drm/exynos: Remove dev_err() on platform_get_irq()
> failure
> 
> Hi Tamseel,
> 
> Same patch[1] has been merged. So could you re-post this patch after rebasing
> it on top of exynos-drm-next branch?
> After rebase, only g2d part would be valid.
> 

Hi Inki Dae,
Thanks for letting me know, I will send updated patch for G2D file.

Thanks & Regards
Tamseel Shams



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