[PATCH 02/15] ARM: bcm: fix a leaked reference by addingmissing of_node_put

From: Wen Yang
Date: Fri Mar 01 2019 - 03:57:45 EST

The call to of_get_next_child returns a node pointer with refcount
incremented thus it must be explicitly decremented after the last

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@xxxxxxxxxx>
Cc: Florian Fainelli <f.fainelli@xxxxxxxxx>
Cc: Ray Jui <rjui@xxxxxxxxxxxx>
Cc: Scott Branden <sbranden@xxxxxxxxxxxx>
Cc: bcm-kernel-feedback-list@xxxxxxxxxxxx
Cc: Russell King <linux@xxxxxxxxxxxxxxx>
Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx
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)
base = of_iomap(np_wdog, 0);
+ of_node_put(np_wdog);
if (!base) {
pr_emerg("Couldn't map brcm,kona-wdt\n");