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drm/bridge: analogix_dp: Fix bailout for devm_drm_bridge_alloc()

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devm_drm_bridge_alloc() returns ERR_PTR on failure instead of a
NULL pointer, so use IS_ERR() to check the returned pointer.
While at it, on failure, return ERR_CAST(dp) instead of
ERR_PTR(-ENOMEM) in order not to depend on devm_drm_bridge_alloc()
error code implementation.

Fixes: 48f05c3b4b ("drm/bridge: analogix_dp: Use devm_drm_bridge_alloc() API")
Signed-off-by: Liu Ying <victor.liu@nxp.com>
Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Link: https://lore.kernel.org/r/20250806095224.527938-1-victor.liu@nxp.com
This commit is contained in:
Liu Ying 2025-08-06 17:52:24 +08:00
parent a52dffaa46
commit 50a8c08b8b
1 changed files with 2 additions and 2 deletions
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4
drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
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@ -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 ERR_CAST(dp);
dp->dev = &pdev->dev;
dp->dpms_mode = DRM_MODE_DPMS_OFF;