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-imx/mach-imx51.c:64:2-8: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 57, but without a corresponding object release within this function. Signed-off-by: Wen Yang <wen.yan...@zte.com.cn> Reviewed-by: Florian Fainelli <f.faine...@gmail.com> Cc: Russell King <li...@armlinux.org.uk> Cc: Shawn Guo <shawn...@kernel.org> Cc: Sascha Hauer <s.ha...@pengutronix.de> Cc: Pengutronix Kernel Team <ker...@pengutronix.de> Cc: Fabio Estevam <feste...@gmail.com> Cc: NXP Linux Team <linux-...@nxp.com> Cc: Lucas Stach <l.st...@pengutronix.de> Cc: linux-arm-ker...@lists.infradead.org Cc: linux-kernel@vger.kernel.org --- v2->v1: add a missing space between "adding" and "missing" arch/arm/mach-imx/mach-imx51.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/mach-imx/mach-imx51.c b/arch/arm/mach-imx/mach-imx51.c index c7169c2..08c7892 100644 --- a/arch/arm/mach-imx/mach-imx51.c +++ b/arch/arm/mach-imx/mach-imx51.c @@ -59,6 +59,7 @@ static void __init imx51_m4if_setup(void) return; m4if_base = of_iomap(np, 0); + of_node_put(np); if (!m4if_base) { pr_err("Unable to map M4IF registers\n"); return; -- 2.9.5