From: Ethan Tidmore <ethantidmore06@gmail.com>
To: Andrzej Hajda <andrzej.hajda@intel.com>,
Neil Armstrong <neil.armstrong@linaro.org>,
Robert Foss <rfoss@kernel.org>,
Damon Ding <damon.ding@rock-chips.com>
Cc: Laurent Pinchart <Laurent.pinchart@ideasonboard.com>,
Jonas Karlman <jonas@kwiboo.se>,
Jernej Skrabec <jernej.skrabec@gmail.com>,
Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
Maxime Ripard <mripard@kernel.org>,
Thomas Zimmermann <tzimmermann@suse.de>,
David Airlie <airlied@gmail.com>, Simona Vetter <simona@ffwll.ch>,
Luca Ceresoli <luca.ceresoli@bootlin.com>,
Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>,
Heiko Stuebner <heiko@sntech.de>,
Marek Szyprowski <m.szyprowski@samsung.com>,
dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org,
Ethan Tidmore <ethantidmore06@gmail.com>
Subject: [PATCH] drm/bridge: analogix_dp: Extract error pointer from correct variable
Date: Tue, 28 Apr 2026 22:08:40 -0500 [thread overview]
Message-ID: <20260429030840.704252-1-ethantidmore06@gmail.com> (raw)
In devm_drm_panel_bridge_add() error path the pointer error should be
extracted from dp->plat_data->next_bridge but instead it is extracted
from bridge, which is a valid pointer and not part of this error path.
Extract error pointer from correct variable.
Detected by Smatch:
drivers/gpu/drm/bridge/analogix/analogix_dp_core.c:1489 analogix_dp_bind()
warn: passing a valid pointer to 'PTR_ERR'
Fixes: 1b86a69b61df4 ("drm/bridge: analogix_dp: Apply panel_bridge helper")
Signed-off-by: Ethan Tidmore <ethantidmore06@gmail.com>
---
drivers/gpu/drm/bridge/analogix/analogix_dp_core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
index 460729fdcecd..3e46350170d4 100644
--- a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
+++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
@@ -1486,7 +1486,7 @@ int analogix_dp_bind(struct analogix_dp_device *dp, struct drm_device *drm_dev)
dp->plat_data->next_bridge = devm_drm_panel_bridge_add(dp->dev,
dp->plat_data->panel);
if (IS_ERR(dp->plat_data->next_bridge)) {
- ret = PTR_ERR(bridge);
+ ret = PTR_ERR(dp->plat_data->next_bridge);
goto err_unregister_aux;
}
}
--
2.54.0
next reply other threads:[~2026-04-29 3:08 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-04-29 3:08 Ethan Tidmore [this message]
2026-04-29 11:29 ` [PATCH] drm/bridge: analogix_dp: Extract error pointer from correct variable Luca Ceresoli
2026-04-30 1:08 ` Damon Ding
2026-05-04 7:02 ` Luca Ceresoli
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