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| author | Wen Yang <wen.yang99@zte.com.cn> | 2019-03-05 14:32:55 +0300 |
|---|---|---|
| committer | Gregory CLEMENT <gregory.clement@bootlin.com> | 2019-04-30 10:05:39 +0300 |
| commit | 8f11b5ab441d3a80de7f079598a548350d3eed0b (patch) | |
| tree | f4d5adcecfa2b6f41d926c85e05b4c028672d4d3 /arch/arm/mach-mvebu | |
| parent | 7971cc408d11e9fb6dd2823f81d3a23465700dd0 (diff) | |
| download | linux-8f11b5ab441d3a80de7f079598a548350d3eed0b.tar.xz | |
ARM: mvebu: fix a leaked reference by adding missing of_node_put
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-mvebu/pm-board.c:135:2-8: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 88, but without a corresponding object release within this functio
Signed-off-by: Wen Yang <wen.yang99@zte.com.cn>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Gregory Clement <gregory.clement@bootlin.com>
Cc: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Cc: Russell King <linux@armlinux.org.uk>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Diffstat (limited to 'arch/arm/mach-mvebu')
| -rw-r--r-- | arch/arm/mach-mvebu/pm-board.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/arch/arm/mach-mvebu/pm-board.c b/arch/arm/mach-mvebu/pm-board.c index db17121d7d63..070552511699 100644 --- a/arch/arm/mach-mvebu/pm-board.c +++ b/arch/arm/mach-mvebu/pm-board.c @@ -79,7 +79,7 @@ static void mvebu_armada_pm_enter(void __iomem *sdram_reg, u32 srcmd) static int __init mvebu_armada_pm_init(void) { struct device_node *np; - struct device_node *gpio_ctrl_np; + struct device_node *gpio_ctrl_np = NULL; int ret = 0, i; if (!of_machine_is_compatible("marvell,axp-gp")) @@ -126,18 +126,23 @@ static int __init mvebu_armada_pm_init(void) goto out; } + if (gpio_ctrl_np) + of_node_put(gpio_ctrl_np); gpio_ctrl_np = args.np; pic_raw_gpios[i] = args.args[0]; } gpio_ctrl = of_iomap(gpio_ctrl_np, 0); - if (!gpio_ctrl) - return -ENOMEM; + if (!gpio_ctrl) { + ret = -ENOMEM; + goto out; + } mvebu_pm_suspend_init(mvebu_armada_pm_enter); out: of_node_put(np); + of_node_put(gpio_ctrl_np); return ret; } |