From mboxrd@z Thu Jan 1 00:00:00 1970 From: Wen Yang Subject: [PATCH 3/4] ARM: rockchip: fix a leaked reference by adding missing of_node_put Date: Tue, 5 Mar 2019 19:32:56 +0800 Message-ID: <1551785577-45896-3-git-send-email-wen.yang99@zte.com.cn> References: <1551785577-45896-1-git-send-email-wen.yang99@zte.com.cn> Return-path: In-Reply-To: <1551785577-45896-1-git-send-email-wen.yang99@zte.com.cn> Sender: linux-kernel-owner@vger.kernel.org To: linux-kernel@vger.kernel.org Cc: wang.yi59@zte.com.cn, Wen Yang , Russell King , Heiko Stuebner , linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org List-Id: linux-rockchip.vger.kernel.org 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-rockchip/platsmp.c:250:2-8: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 241, but without a corresponding object release within this function. ./arch/arm/mach-rockchip/platsmp.c:260:2-8: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 241, but without a corresponding object release within this function. ./arch/arm/mach-rockchip/platsmp.c:263:1-7: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 241, but without a corresponding object release within this function. Signed-off-by: Wen Yang Cc: Russell King Cc: Heiko Stuebner Cc: linux-arm-kernel@lists.infradead.org Cc: linux-rockchip@lists.infradead.org Cc: linux-kernel@vger.kernel.org --- arch/arm/mach-rockchip/platsmp.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/mach-rockchip/platsmp.c b/arch/arm/mach-rockchip/platsmp.c index f93d64e..6cb4b21 100644 --- a/arch/arm/mach-rockchip/platsmp.c +++ b/arch/arm/mach-rockchip/platsmp.c @@ -245,6 +245,7 @@ static int __init rockchip_smp_prepare_pmu(void) } pmu_base = of_iomap(node, 0); + of_node_put(node); if (!pmu_base) { pr_err("%s: could not map pmu registers\n", __func__); return -ENOMEM; -- 2.9.5