linux-kernel - [PATCH 3/5] wl1251: call pm_runtime_put_sync in pm_runtime_get

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Message-ID: <1362037892.6212.13.camel@fli24-HP-Compaq-8100-Elite-CMT-PC>
Date:	Thu, 28 Feb 2013 15:51:32 +0800
From:	Li Fei <fei.li@...el.com>
To:	coelho@...com, linville@...driver.com, wfp5p@...ginia.edu,
	gregkh@...uxfoundation.org, notasas@...il.com
Cc:	rjw@...k.pl, linux-wireless@...r.kernel.org,
	netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	chuansheng.liu@...el.com, fei.li@...el.com
Subject: [PATCH 3/5] wl1251: call pm_runtime_put_sync 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/net/wireless/ti/wl1251/sdio.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/drivers/net/wireless/ti/wl1251/sdio.c b/drivers/net/wireless/ti/wl1251/sdio.c
index e57ee48..e2b3d9c 100644
--- a/drivers/net/wireless/ti/wl1251/sdio.c
+++ b/drivers/net/wireless/ti/wl1251/sdio.c
@@ -186,8 +186,10 @@ static int wl1251_sdio_set_power(struct wl1251 *wl, bool enable)
 			wl->set_power(true);
 
 		ret = pm_runtime_get_sync(&func->dev);
-		if (ret < 0)
+		if (ret < 0) {
+			pm_runtime_put_sync(&func->dev);
 			goto out;
+		}
 
 		sdio_claim_host(func);
 		sdio_enable_func(func);
-- 
1.7.4.1



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