linux-kernel - [PATCH] arm: pm: call put_device instead of of_node_put in at91_pm_config

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Message-ID: <1534415182-34970-1-git-send-email-zhongjiang@huawei.com>
Date:   Thu, 16 Aug 2018 18:26:22 +0800
From:   zhong jiang <zhongjiang@...wei.com>
To:     <alexandre.belloni@...tlin.com>, <Claudiu.Beznea@...rochip.com>
CC:     <linux@...linux.org.uk>, <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>
Subject: [PATCH] arm: pm: call put_device instead of of_node_put in at91_pm_config_ws

of_find_device_by_node takes a reference to the struct device when it
finds a match via get_device. but it fails to put_device in
at91_pm_config_ws, for_each_matching_node_and_match will get and put
the node properly, there is no need to call the of_put_node. Therefore,
just call put_device instead of of_node_put in at91_pm_config_ws.

Fixes: d7484f5c6b3b ("ARM: at91: pm: configure wakeup sources for ULP1 mode")
Suggested-by: Claudiu Beznea <Claudiu.Beznea@...rochip.com>
Signed-off-by: zhong jiang <zhongjiang@...wei.com>
---
 arch/arm/mach-at91/pm.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/arm/mach-at91/pm.c b/arch/arm/mach-at91/pm.c
index 32fae4d..6574f00 100644
--- a/arch/arm/mach-at91/pm.c
+++ b/arch/arm/mach-at91/pm.c
@@ -143,15 +143,15 @@ static int at91_pm_config_ws(unsigned int pm_mode, bool set)
 
 			/* Check if enabled on SHDWC. */
 			if (wsi->shdwc_mr_bit && !(val & wsi->shdwc_mr_bit))
-				goto put_node;
+				goto put_device;
 
 			mode |= wsi->pmc_fsmr_bit;
 			if (wsi->set_polarity)
 				polarity |= wsi->pmc_fsmr_bit;
 		}
 
-put_node:
-		of_node_put(np);
+put_device:
+		put_device(&pdev->dev);
 	}
 
 	if (mode) {
-- 
1.7.12.4