linux-kernel - [PATCH AUTOSEL 5.4 022/108] drm/tegra: dc: Release PM and RGB output when client's registration fails

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Message-Id: <20200411230943.24951-22-sashal@kernel.org>
Date:   Sat, 11 Apr 2020 19:08:17 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Dmitry Osipenko <digetx@...il.com>,
        Thierry Reding <treding@...dia.com>,
        Sasha Levin <sashal@...nel.org>,
        dri-devel@...ts.freedesktop.org, linux-tegra@...r.kernel.org
Subject: [PATCH AUTOSEL 5.4 022/108] drm/tegra: dc: Release PM and RGB output when client's registration fails

From: Dmitry Osipenko <digetx@...il.com>

[ Upstream commit 0411ea89a689531e1829fdf8af3747646c02c721 ]

Runtime PM and RGB output need to be released when host1x client
registration fails. The releasing is missed in the code, let's correct it.

Signed-off-by: Dmitry Osipenko <digetx@...il.com>
Signed-off-by: Thierry Reding <treding@...dia.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/gpu/drm/tegra/dc.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/tegra/dc.c b/drivers/gpu/drm/tegra/dc.c
index fbf57bc3cdaba..6dbbd238f60be 100644
--- a/drivers/gpu/drm/tegra/dc.c
+++ b/drivers/gpu/drm/tegra/dc.c
@@ -2496,10 +2496,16 @@ static int tegra_dc_probe(struct platform_device *pdev)
 	if (err < 0) {
 		dev_err(&pdev->dev, "failed to register host1x client: %d\n",
 			err);
-		return err;
+		goto disable_pm;
 	}
 
 	return 0;
+
+disable_pm:
+	pm_runtime_disable(&pdev->dev);
+	tegra_dc_rgb_remove(dc);
+
+	return err;
 }
 
 static int tegra_dc_remove(struct platform_device *pdev)
-- 
2.20.1