[PATCH] drm/bridge: synopsys: dw-dp: Pass dp->irq instead of ret to ERR_PTR() on IRQ failure

[Alper Ak]

The error handling after platform_get_irq() incorrectly passes ret to
ERR_PTR(), but ret still holds the value 0 from the previous successful
devm_add_action_or_reset() call. This causes ERR_PTR(0) which returns NULL
instead of a proper error pointer.

Pass dp->irq to ERR_PTR() since platform_get_irq() returns the negative
error code directly in dp->irq on failure.

Fixes: 86eecc3a9c2e ("drm/bridge: synopsys: Add DW DPTX Controller support 
library")
Signed-off-by: Alper Ak <alperyasin...@gmail.com>
---
 drivers/gpu/drm/bridge/synopsys/dw-dp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/bridge/synopsys/dw-dp.c 
b/drivers/gpu/drm/bridge/synopsys/dw-dp.c
index 36382956bbe0..718397a29e80 100644
--- a/drivers/gpu/drm/bridge/synopsys/dw-dp.c
+++ b/drivers/gpu/drm/bridge/synopsys/dw-dp.c
@@ -2079,7 +2079,7 @@ struct dw_dp *dw_dp_bind(struct device *dev, struct 
drm_encoder *encoder,
 
        dp->irq = platform_get_irq(pdev, 0);
        if (dp->irq < 0)
-               return ERR_PTR(ret);
+               return ERR_PTR(dp->irq);
 
        ret = devm_request_threaded_irq(dev, dp->irq, NULL, dw_dp_irq,
                                        IRQF_ONESHOT, dev_name(dev), dp);
-- 
2.43.0