linux-kernel - [PATCH] drm/ssd130x: Remove the use of dev_err

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Message-Id: <20250820131416.500048-1-liaoyuanhong@vivo.com>
Date: Wed, 20 Aug 2025 21:14:15 +0800
From: Liao Yuanhong <liaoyuanhong@...o.com>
To: Javier Martinez Canillas <javierm@...hat.com>,
	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
	Maxime Ripard <mripard@...nel.org>,
	Thomas Zimmermann <tzimmermann@...e.de>,
	David Airlie <airlied@...il.com>,
	Simona Vetter <simona@...ll.ch>,
	dri-devel@...ts.freedesktop.org (open list:DRM DRIVERS),
	linux-kernel@...r.kernel.org (open list)
Cc: Liao Yuanhong <liaoyuanhong@...o.com>
Subject: [PATCH] drm/ssd130x: Remove the use of dev_err_probe()

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@...o.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