From 7ad4384d53c67672a8720cdc2ef638d7d1710ab8 Mon Sep 17 00:00:00 2001
From: Zhang Zekun <zhangzekun11@huawei.com>
Date: Tue, 2 Aug 2022 08:50:50 +0000
Subject: [PATCH] drm/tegra: Add missing clk_disable_unprepare() in tegra_dc_probe()
Git-commit: 7ad4384d53c67672a8720cdc2ef638d7d1710ab8
Patch-mainline: v6.2-rc1
References: git-fixes
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@huawei.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/gpu/drm/tegra/dc.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/tegra/dc.c b/drivers/gpu/drm/tegra/dc.c
index bd0f60704467..a67453cee883 100644
--- a/drivers/gpu/drm/tegra/dc.c
+++ b/drivers/gpu/drm/tegra/dc.c
@@ -3205,8 +3205,10 @@ 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);
--
2.35.3