Patch "drm/tegra: Add missing clk_disable_unprepare() in tegra_dc_probe()" has been added to the 5.4-stable tree

[Sasha Levin <sashal@xxxxxxxxxx>]

This is a note to let you know that I've just added the patch titled

    drm/tegra: Add missing clk_disable_unprepare() in tegra_dc_probe()

to the 5.4-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     drm-tegra-add-missing-clk_disable_unprepare-in-tegra.patch
and it can be found in the queue-5.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit bee04707ed0bcf825505a8cb6760333544d44932
Author: Zhang Zekun <zhangzekun11@xxxxxxxxxx>
Date:   Tue Aug 2 08:50:50 2022 +0000

    drm/tegra: Add missing clk_disable_unprepare() in tegra_dc_probe()
    
    [ Upstream commit 7ad4384d53c67672a8720cdc2ef638d7d1710ab8 ]
    
    Add the missing clk_disable_unprepare() before return from
    tegra_dc_probe() in the error handling path.
    
    Fixes: f68ba6912bd2 ("drm/tegra: dc: Link DC1 to DC0 on Tegra20")
    Signed-off-by: Zhang Zekun <zhangzekun11@xxxxxxxxxx>
    Signed-off-by: Thierry Reding <treding@xxxxxxxxxx>
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/drivers/gpu/drm/tegra/dc.c b/drivers/gpu/drm/tegra/dc.c
index c410221824c1..923899b95c88 100644
--- a/drivers/gpu/drm/tegra/dc.c
+++ b/drivers/gpu/drm/tegra/dc.c
@@ -2458,8 +2458,10 @@ static int tegra_dc_probe(struct platform_device *pdev)
 	usleep_range(2000, 4000);
 
 	err = reset_control_assert(dc->rst);
-	if (err < 0)
+	if (err < 0) {
+		clk_disable_unprepare(dc->clk);
 		return err;
+	}
 
 	usleep_range(2000, 4000);