2020-05-19 11:05:34

by Tamseel Shams

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

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 <[email protected]>
---
Fixed review comment by [email protected]

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


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.

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 <[email protected]>
> ---
> Fixed review comment by [email protected]
>
> 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);
>

2020-05-21 14:19:51

by Tamseel Shams

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



> -----Original Message-----
> From: Inki Dae <[email protected]>
> Sent: Wednesday, May 20, 2020 11:08 AM
> To: Tamseel Shams <[email protected]>; [email protected];
> [email protected]; [email protected]; [email protected];
> [email protected]
> Cc: [email protected]; [email protected]; linux-
> [email protected]; [email protected];
> [email protected]; [email protected]; [email protected]
> 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