[PATCH] drm/ssd130x: Remove the use of dev_err_probe()

[PATCH] drm/ssd130x: Remove the use of dev_err_probe()

[Liao Yuanhong]

Logging messages that show some type of "out of memory" error are generally
unnecessary as there is a generic message and a stack dump done by the
memory subsystem. These messages generally increase kernel size without
much added value[1].

The dev_err_probe() doesn't do anything when error is '-ENOMEM'. Therefore,
remove the useless call to dev_err_probe(), and just return the value
instead.

[1]: https://lore.kernel.org/lkml/1402419340.30479.18.camel@joe-AO725/

Signed-off-by: Liao Yuanhong <liaoyuanhong@vivo.com>
---
 drivers/gpu/drm/solomon/ssd130x-spi.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/solomon/ssd130x-spi.c b/drivers/gpu/drm/solomon/ssd130x-spi.c
index 7c935870f7d2..b52f5fd592a1 100644
--- a/drivers/gpu/drm/solomon/ssd130x-spi.c
+++ b/drivers/gpu/drm/solomon/ssd130x-spi.c
@@ -74,8 +74,7 @@ static int ssd130x_spi_probe(struct spi_device *spi)
 
 	t = devm_kzalloc(dev, sizeof(*t), GFP_KERNEL);
 	if (!t)
-		return dev_err_probe(dev, -ENOMEM,
-				     "Failed to allocate SPI transport data\n");
+		return -ENOMEM;
 
 	t->spi = spi;
 	t->dc = dc;
-- 
2.34.1

Re: [PATCH] drm/ssd130x: Remove the use of dev_err_probe()

[Javier Martinez Canillas]

Liao Yuanhong <liaoyuanhong@vivo.com> writes:

Hello Liao,

Thanks for your patch.

> Logging messages that show some type of "out of memory" error are generally
> unnecessary as there is a generic message and a stack dump done by the
> memory subsystem. These messages generally increase kernel size without
> much added value[1].
>
> The dev_err_probe() doesn't do anything when error is '-ENOMEM'. Therefore,
> remove the useless call to dev_err_probe(), and just return the value
> instead.
>
> [1]: https://lore.kernel.org/lkml/1402419340.30479.18.camel@joe-AO725/
>
> Signed-off-by: Liao Yuanhong <liaoyuanhong@vivo.com>
> ---
>  drivers/gpu/drm/solomon/ssd130x-spi.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/solomon/ssd130x-spi.c b/drivers/gpu/drm/solomon/ssd130x-spi.c
> index 7c935870f7d2..b52f5fd592a1 100644
> --- a/drivers/gpu/drm/solomon/ssd130x-spi.c
> +++ b/drivers/gpu/drm/solomon/ssd130x-spi.c
> @@ -74,8 +74,7 @@ static int ssd130x_spi_probe(struct spi_device *spi)
>  
>  	t = devm_kzalloc(dev, sizeof(*t), GFP_KERNEL);
>  	if (!t)
> -		return dev_err_probe(dev, -ENOMEM,
> -				     "Failed to allocate SPI transport data\n");
> +		return -ENOMEM;
>  
>  	t->spi = spi;
>  	t->dc = dc;
> -- 
> 2.34.1
>

Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>

Pushed to drm-misc (drm-misc-next). Thanks!

-- 
Best regards,

Javier Martinez Canillas
Core Platforms
Red Hat