linux-kernel - [PATCH 1/5] regmap: irq: call pm_runtime_put in pm_runtime_get

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Date:	Thu, 28 Feb 2013 15:37:11 +0800
From:	Li Fei <fei.li@...el.com>
To:	broonie@...nsource.wolfsonmicro.com, gregkh@...uxfoundation.org
Cc:	rjw@...k.pl, linux-kernel@...r.kernel.org,
	chuansheng.liu@...el.com, fei.li@...el.com
Subject: [PATCH 1/5] regmap: irq: call pm_runtime_put in
 pm_runtime_get_sync failed case


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>
---
 drivers/base/regmap/regmap-irq.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/drivers/base/regmap/regmap-irq.c b/drivers/base/regmap/regmap-irq.c
index 4706c63..020ea2b 100644
--- a/drivers/base/regmap/regmap-irq.c
+++ b/drivers/base/regmap/regmap-irq.c
@@ -184,6 +184,7 @@ 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;
 		}
 	}
-- 
1.7.4.1



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