lkml.org 
[lkml]   [2019]   [Apr]   [22]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH AUTOSEL 4.19 15/68] ARM: imx51: fix a leaked reference by adding missing of_node_put
Date
From: Wen Yang <wen.yang99@zte.com.cn>

[ Upstream commit 0c17e83fe423467e3ccf0a02f99bd050a73bbeb4 ]

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.yang99@zte.com.cn>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Pengutronix Kernel Team <kernel@pengutronix.de>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: NXP Linux Team <linux-imx@nxp.com>
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin (Microsoft) <sashal@kernel.org>
---
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 c7169c2f94c4..08c7892866c2 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;
--
2.19.1
\
 
 \ /
  Last update: 2019-04-22 22:04    [W:0.481 / U:3.044 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site