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From:   Wen Yang <wen.yang99@zte.com.cn>
To:     liviu.dudau@arm.com
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        Wen Yang <wen.yang99@zte.com.cn>
Subject: [PATCH 02/15] ARM: bcm: fix a leaked reference by addingmissing of_node_put
Date:   Fri, 1 Mar 2019 16:56:43 +0800
Message-Id: <1551430616-42014-2-git-send-email-wen.yang99@zte.com.cn>
In-Reply-To: <1551430616-42014-1-git-send-email-wen.yang99@zte.com.cn>
References: <1551430616-42014-1-git-send-email-wen.yang99@zte.com.cn>
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The call to of_get_next_child returns a node pointer with refcount
incremented thus it must be explicitly decremented after the last
usage.

Detected by coccinelle with the following warnings:
./arch/arm/mach-bcm/board_bcm281xx.c:43:2-8: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 35, but without a corresponding object release within this function.

Signed-off-by: Wen Yang <wen.yang99@zte.com.cn>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Ray Jui <rjui@broadcom.com>
Cc: Scott Branden <sbranden@broadcom.com>
Cc: bcm-kernel-feedback-list@broadcom.com
Cc: Russell King <linux@armlinux.org.uk>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
---
 arch/arm/mach-bcm/board_bcm281xx.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/mach-bcm/board_bcm281xx.c b/arch/arm/mach-bcm/board_bcm281xx.c
index b81bb38..1238ac8 100644
--- a/arch/arm/mach-bcm/board_bcm281xx.c
+++ b/arch/arm/mach-bcm/board_bcm281xx.c
@@ -38,6 +38,7 @@ static void bcm281xx_restart(enum reboot_mode mode, const char *cmd)
 		return;
 	}
 	base = of_iomap(np_wdog, 0);
+	of_node_put(np_wdog);
 	if (!base) {
 		pr_emerg("Couldn't map brcm,kona-wdt\n");
 		return;
-- 
2.9.5