linux-kernel - [PATCH next] drm/bridge: analogix_dp: Fix a NULL vs IS

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Message-ID: <d679e2f0-f449-41c4-83ed-c3e26e440a4a@sabinyo.mountain>
Date: Tue, 15 Jul 2025 17:59:06 -0500
From: Dan Carpenter <dan.carpenter@...aro.org>
To: Marek Szyprowski <m.szyprowski@...sung.com>
Cc: Andrzej Hajda <andrzej.hajda@...el.com>,
	Neil Armstrong <neil.armstrong@...aro.org>,
	Robert Foss <rfoss@...nel.org>,
	Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
	Jonas Karlman <jonas@...boo.se>,
	Jernej Skrabec <jernej.skrabec@...il.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>,
	Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>,
	Douglas Anderson <dianders@...omium.org>,
	Damon Ding <damon.ding@...k-chips.com>,
	Luca Ceresoli <luca.ceresoli@...tlin.com>,
	dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
	kernel-janitors@...r.kernel.org
Subject: [PATCH next] drm/bridge: analogix_dp: Fix a NULL vs IS_ERR() bug

The devm_drm_bridge_alloc() function returns error pointers on error.  It
never returns NULL.

Fixes: 48f05c3b4b70 ("drm/bridge: analogix_dp: Use devm_drm_bridge_alloc() API")
Signed-off-by: Dan Carpenter <dan.carpenter@...aro.org>
---
 drivers/gpu/drm/bridge/analogix/analogix_dp_core.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
index ed35e567d117..4b9b444bd249 100644
--- a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
+++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
@@ -1474,8 +1474,8 @@ analogix_dp_probe(struct device *dev, struct analogix_dp_plat_data *plat_data)
 
 	dp = devm_drm_bridge_alloc(dev, struct analogix_dp_device, bridge,
 				   &analogix_dp_bridge_funcs);
-	if (!dp)
-		return ERR_PTR(-ENOMEM);
+	if (IS_ERR(dp))
+		return dp;
 
 	dp->dev = &pdev->dev;
 	dp->dpms_mode = DRM_MODE_DPMS_OFF;
-- 
2.47.2