drm/msm/hdmi: Fix the error handling path of msm_hdmi_dev_probe()

If an error occurs after a successful msm_hdmi_get_phy() call, it must be
undone by a corresponding msm_hdmi_put_phy(), as already done in the
remove function.

Fixes: 437365464043 ("drm/msm/hdmi: move msm_hdmi_get_phy() to msm_hdmi_dev_probe()")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Patchwork: https://patchwork.freedesktop.org/patch/514847/
Link: https://lore.kernel.org/r/b3f9da097851e2e42a40dc61458aa98c41c88d0d.1670741386.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Abhinav Kumar <quic_abhinavk@quicinc.com>

diff --git a/drivers/gpu/drm/msm/hdmi/hdmi.c b/drivers/gpu/drm/msm/hdmi/hdmi.c
index 4d3fdc8..97372bb 100644 (file)
--- a/drivers/gpu/drm/msm/hdmi/hdmi.c
+++ b/drivers/gpu/drm/msm/hdmi/hdmi.c
@@ -532,11 +532,19 @@ static int msm_hdmi_dev_probe(struct platform_device *pdev)
 
        ret = devm_pm_runtime_enable(&pdev->dev);
        if (ret)
-               return ret;
+               goto err_put_phy;
 
        platform_set_drvdata(pdev, hdmi);
 
-       return component_add(&pdev->dev, &msm_hdmi_ops);
+       ret = component_add(&pdev->dev, &msm_hdmi_ops);
+       if (ret)
+               goto err_put_phy;
+
+       return 0;
+
+err_put_phy:
+       msm_hdmi_put_phy(hdmi);
+       return ret;
 }
 
 static int msm_hdmi_dev_remove(struct platform_device *pdev)