drm/sun4i: dw-hdmi: Fix missing put_device() call in sun8i_hdmi_phy_get

[PATCH] drm/sun4i: dw-hdmi: Fix missing put_device() call in sun8i_hdmi_phy_get

Posted by Miaoqian Lin 4 years, 5 months ago

The reference taken by 'of_find_device_by_node()' must be released when
not needed anymore.
Add the corresponding 'put_device()' in the error handling path.

Fixes: 9bf3797796f5 ("drm/sun4i: dw-hdmi: Make HDMI PHY into a platform device")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
---
 drivers/gpu/drm/sun4i/sun8i_hdmi_phy.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/sun4i/sun8i_hdmi_phy.c b/drivers/gpu/drm/sun4i/sun8i_hdmi_phy.c
index b64d93da651d..5e2b0175df36 100644
--- a/drivers/gpu/drm/sun4i/sun8i_hdmi_phy.c
+++ b/drivers/gpu/drm/sun4i/sun8i_hdmi_phy.c
@@ -658,8 +658,10 @@ int sun8i_hdmi_phy_get(struct sun8i_dw_hdmi *hdmi, struct device_node *node)
 		return -EPROBE_DEFER;
 
 	phy = platform_get_drvdata(pdev);
-	if (!phy)
+	if (!phy) {
+		put_device(&pdev->dev);
 		return -EPROBE_DEFER;
+	}
 
 	hdmi->phy = phy;
 
-- 
2.17.1

Re: (subset) [PATCH] drm/sun4i: dw-hdmi: Fix missing put_device() call in sun8i_hdmi_phy_get

Posted by Maxime Ripard 4 years, 5 months ago

On Fri, 7 Jan 2022 08:36:32 +0000, Miaoqian Lin wrote:
> The reference taken by 'of_find_device_by_node()' must be released when
> not needed anymore.
> Add the corresponding 'put_device()' in the error handling path.
> 
> 

Applied to drm/drm-misc (drm-misc-fixes).

Thanks!
Maxime