diff mbox

[6/7] fbdev: exynos: fix IS_ERR_VALUE usage

Message ID 1455546925-22119-7-git-send-email-a.hajda@samsung.com (mailing list archive)
State Not Applicable, archived
Headers show

Commit Message

Andrzej Hajda Feb. 15, 2016, 2:35 p.m. UTC
IS_ERR_VALUE macro should be used only with unsigned long type.
For signed types comparison 'ret < 0' should be used.

The patch follows conclusion from discussion on LKML [1][2].

[1]: http://permalink.gmane.org/gmane.linux.kernel/2120927
[2]: http://permalink.gmane.org/gmane.linux.kernel/2150581

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
---
 drivers/video/fbdev/exynos/exynos_mipi_dsi.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

Comments

Tomi Valkeinen Feb. 16, 2016, 1:36 p.m. UTC | #1
On 15/02/16 16:35, Andrzej Hajda wrote:
> IS_ERR_VALUE macro should be used only with unsigned long type.
> For signed types comparison 'ret < 0' should be used.
> 
> The patch follows conclusion from discussion on LKML [1][2].
> 
> [1]: http://permalink.gmane.org/gmane.linux.kernel/2120927
> [2]: http://permalink.gmane.org/gmane.linux.kernel/2150581
> 
> Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
> ---
>  drivers/video/fbdev/exynos/exynos_mipi_dsi.c | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/video/fbdev/exynos/exynos_mipi_dsi.c b/drivers/video/fbdev/exynos/exynos_mipi_dsi.c
> index b527fe4..951b592 100644
> --- a/drivers/video/fbdev/exynos/exynos_mipi_dsi.c
> +++ b/drivers/video/fbdev/exynos/exynos_mipi_dsi.c
> @@ -402,12 +402,12 @@ static int exynos_mipi_dsi_probe(struct platform_device *pdev)
>  		goto error;
>  	}
>  
> -	dsim->irq = platform_get_irq(pdev, 0);
> -	if (IS_ERR_VALUE(dsim->irq)) {
> +	ret = platform_get_irq(pdev, 0);
> +	if (ret < 0) {
>  		dev_err(&pdev->dev, "failed to request dsim irq resource\n");
> -		ret = -EINVAL;
>  		goto error;
>  	}
> +	dsim->irq = ret;
>  
>  	init_completion(&dsim_wr_comp);
>  	init_completion(&dsim_rd_comp);
> 

Thanks, queued for 4.6.

 Tomi
diff mbox

Patch

diff --git a/drivers/video/fbdev/exynos/exynos_mipi_dsi.c b/drivers/video/fbdev/exynos/exynos_mipi_dsi.c
index b527fe4..951b592 100644
--- a/drivers/video/fbdev/exynos/exynos_mipi_dsi.c
+++ b/drivers/video/fbdev/exynos/exynos_mipi_dsi.c
@@ -402,12 +402,12 @@  static int exynos_mipi_dsi_probe(struct platform_device *pdev)
 		goto error;
 	}
 
-	dsim->irq = platform_get_irq(pdev, 0);
-	if (IS_ERR_VALUE(dsim->irq)) {
+	ret = platform_get_irq(pdev, 0);
+	if (ret < 0) {
 		dev_err(&pdev->dev, "failed to request dsim irq resource\n");
-		ret = -EINVAL;
 		goto error;
 	}
+	dsim->irq = ret;
 
 	init_completion(&dsim_wr_comp);
 	init_completion(&dsim_rd_comp);