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/msm/disp/mdp4/mdp4_kms.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/msm/disp/mdp4/mdp4_kms.c b/drivers/gpu/drm/msm/disp/mdp4/mdp4_kms.c
index 0952c7f18abd..c7d52caa1cba 100644
--- a/drivers/gpu/drm/msm/disp/mdp4/mdp4_kms.c
+++ b/drivers/gpu/drm/msm/disp/mdp4/mdp4_kms.c
@@ -529,7 +529,7 @@ static int mdp4_probe(struct platform_device *pdev)
 
 	mdp4_kms = devm_kzalloc(dev, sizeof(*mdp4_kms), GFP_KERNEL);
 	if (!mdp4_kms)
-		return dev_err_probe(dev, -ENOMEM, "failed to allocate kms\n");
+		return -ENOMEM;
 
 	mdp4_kms->mmio = msm_ioremap(pdev, NULL);
 	if (IS_ERR(mdp4_kms->mmio))
-- 
2.34.1

On Wed, Aug 20, 2025 at 09:12:56PM +0800, Liao Yuanhong wrote:
> 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/msm/disp/mdp4/mdp4_kms.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>


-- 
With best wishes
Dmitry