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From:   Sasha Levin <sashal@kernel.org>
To:     linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc:     =?UTF-8?q?Niklas=20S=C3=B6derlund?= 
        <niklas.soderlund+renesas@ragnatech.se>,
        Geert Uytterhoeven <geert+renesas@glider.be>,
        Daniel Lezcano <daniel.lezcano@linaro.org>,
        Sasha Levin <sashal@kernel.org>, linux-pm@vger.kernel.org
Subject: [PATCH AUTOSEL 5.4 184/330] thermal: rcar_thermal: Handle probe error gracefully
Date:   Thu, 17 Sep 2020 21:58:44 -0400
Message-Id: <20200918020110.2063155-184-sashal@kernel.org>
In-Reply-To: <20200918020110.2063155-1-sashal@kernel.org>
References: <20200918020110.2063155-1-sashal@kernel.org>
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From: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>

[ Upstream commit 39056e8a989ef52486e063e34b4822b341e47b0e ]

If the common register memory resource is not available the driver needs
to fail gracefully to disable PM. Instead of returning the error
directly store it in ret and use the already existing error path.

Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20200310114709.1483860-1-niklas.soderlund+renesas@ragnatech.se
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/thermal/rcar_thermal.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/thermal/rcar_thermal.c b/drivers/thermal/rcar_thermal.c
index d0873de718da9..43f0cd2bd0ae6 100644
--- a/drivers/thermal/rcar_thermal.c
+++ b/drivers/thermal/rcar_thermal.c
@@ -526,8 +526,10 @@ static int rcar_thermal_probe(struct platform_device *pdev)
 			res = platform_get_resource(pdev, IORESOURCE_MEM,
 						    mres++);
 			common->base = devm_ioremap_resource(dev, res);
-			if (IS_ERR(common->base))
-				return PTR_ERR(common->base);
+			if (IS_ERR(common->base)) {
+				ret = PTR_ERR(common->base);
+				goto error_unregister;
+			}
 
 			idle = 0; /* polling delay is not needed */
 		}
-- 
2.25.1