From: Qinglang Miao <miaoqinglang@huawei.com>
Date: Fri, 30 Oct 2020 01:34:24 +0000 (+0800)
Subject: drm/tegra: sor: Disable clocks on error in tegra_sor_init()
X-Git-Tag: v4.14.213~198
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=d022341d2218cc7b142b83ae514f4d186b68e8c0;p=users%2Fdwmw2%2Flinux.git

drm/tegra: sor: Disable clocks on error in tegra_sor_init()

[ Upstream commit bf3a3cdcad40e5928a22ea0fd200d17fd6d6308d ]

Fix the missing clk_disable_unprepare() before return from
tegra_sor_init() in the error handling case.

Signed-off-by: Qinglang Miao <miaoqinglang@huawei.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---

diff --git a/drivers/gpu/drm/tegra/sor.c b/drivers/gpu/drm/tegra/sor.c
index 7ab1d1dc7cd73..352ae52be3418 100644
--- a/drivers/gpu/drm/tegra/sor.c
+++ b/drivers/gpu/drm/tegra/sor.c
@@ -2378,17 +2378,23 @@ static int tegra_sor_init(struct host1x_client *client)
 		if (err < 0) {
 			dev_err(sor->dev, "failed to deassert SOR reset: %d\n",
 				err);
+			clk_disable_unprepare(sor->clk);
 			return err;
 		}
 	}
 
 	err = clk_prepare_enable(sor->clk_safe);
-	if (err < 0)
+	if (err < 0) {
+		clk_disable_unprepare(sor->clk);
 		return err;
+	}
 
 	err = clk_prepare_enable(sor->clk_dp);
-	if (err < 0)
+	if (err < 0) {
+		clk_disable_unprepare(sor->clk_safe);
+		clk_disable_unprepare(sor->clk);
 		return err;
+	}
 
 	return 0;
 }