linux-kernel - [PATCH 3.8-stable] regmap: irq: call pm_runtime_put in pm_runtime_get

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Message-id: <003601ce3bc2$e72fd950$b58f8bf0$%choi@samsung.com>
Date:	Thu, 18 Apr 2013 08:25:52 +0900
From:	Jonghwan Choi <jhbird.choi@...sung.com>
To:	'Jonghwan Choi' <jhbird.choi@...sung.com>,
	linux-kernel@...r.kernel.org, cpgs@...sung.com
Cc:	stable@...r.kernel.org, 'Li Fei' <fei.li@...el.com>,
	'Mark Brown' <broonie@...nsource.wolfsonmicro.com>,
	'Liu Chuansheng' <chuansheng.liu@...el.com>
Subject: [PATCH 3.8-stable] regmap: irq: call pm_runtime_put in
 pm_runtime_get_sync

3.8-stable review patch.  If anyone has any objections, please let me know.

------------------

From: "Li Fei <fei.li@...el.com>"

commit 283189d3be56aa6db6f192bb255df68493cd79ac upstream.

Even in failed case of pm_runtime_get_sync, the usage_count
is incremented. In order to keep the usage_count with correct
value and runtime power management to behave correctly, call
pm_runtime_put(_sync) in such case.

Signed-off-by Liu Chuansheng <chuansheng.liu@...el.com>
Signed-off-by: Li Fei <fei.li@...el.com>
Signed-off-by: Mark Brown <broonie@...nsource.wolfsonmicro.com>
Signed-off-by: Jonghwan Choi <jhbird.choi@...sung.com>
---
 drivers/base/regmap/regmap-irq.c |    1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/base/regmap/regmap-irq.c
b/drivers/base/regmap/regmap-irq.c
index 5972ad9..d623eea 100644
--- a/drivers/base/regmap/regmap-irq.c
+++ b/drivers/base/regmap/regmap-irq.c
@@ -167,6 +167,7 @@ static irqreturn_t regmap_irq_thread(int irq, void *d)
 		if (ret < 0) {
 			dev_err(map->dev, "IRQ thread failed to resume:
%d\n",
 				ret);
+			pm_runtime_put(map->dev);
 			return IRQ_NONE;
 		}
 	}
-- 
1.7.9.5

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