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| author | Wen Yang <wen.yang99@zte.com.cn> | 2019-03-05 19:33:54 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-06-11 12:23:35 +0200 |
| commit | f7dee0816e5d71cfdf924e21f4a21f51fd109b89 (patch) | |
| tree | 5e4bb3f297d9e98cbc4c5a2a9e2d77e1f0dd9e2f | |
| parent | ce814dc7e8110c5ea6da1ba49a27d099c937824b (diff) | |
| download | linux-stable-f7dee0816e5d71cfdf924e21f4a21f51fd109b89.tar.gz linux-stable-f7dee0816e5d71cfdf924e21f4a21f51fd109b89.tar.bz2 linux-stable-f7dee0816e5d71cfdf924e21f4a21f51fd109b89.zip | |
ARM: exynos: Fix a leaked reference by adding missing of_node_put
commit 629266bf7229cd6a550075f5961f95607b823b59 upstream.
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 warnings like:
arch/arm/mach-exynos/firmware.c:201:2-8: ERROR: missing of_node_put;
acquired a node pointer with refcount incremented on line 193,
but without a corresponding object release within this function.
Cc: stable@vger.kernel.org
Signed-off-by: Wen Yang <wen.yang99@zte.com.cn>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | arch/arm/mach-exynos/firmware.c | 1 | ||||
| -rw-r--r-- | arch/arm/mach-exynos/suspend.c | 2 |
2 files changed, 3 insertions, 0 deletions
diff --git a/arch/arm/mach-exynos/firmware.c b/arch/arm/mach-exynos/firmware.c index 111cfbf66fdb..7bfe2bd17400 100644 --- a/arch/arm/mach-exynos/firmware.c +++ b/arch/arm/mach-exynos/firmware.c @@ -207,6 +207,7 @@ void __init exynos_firmware_init(void) return; addr = of_get_address(nd, 0, NULL, NULL); + of_node_put(nd); if (!addr) { pr_err("%s: No address specified.\n", __func__); return; diff --git a/arch/arm/mach-exynos/suspend.c b/arch/arm/mach-exynos/suspend.c index e8adb428dddb..a003833ac112 100644 --- a/arch/arm/mach-exynos/suspend.c +++ b/arch/arm/mach-exynos/suspend.c @@ -725,8 +725,10 @@ void __init exynos_pm_init(void) if (WARN_ON(!of_find_property(np, "interrupt-controller", NULL))) { pr_warn("Outdated DT detected, suspend/resume will NOT work\n"); + of_node_put(np); return; } + of_node_put(np); pm_data = (const struct exynos_pm_data *) match->data; |