Messages in this thread Patch in this message | | | From | Wen Yang <> | Subject | [PATCH 10/15] ARM: sunxi: fix a leaked reference by addingmissing of_node_put | Date | Fri, 1 Mar 2019 16:56:51 +0800 |
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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-sunxi/platsmp.c:55:2-8: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 46, but without a corresponding object release within this function. ./arch/arm/mach-sunxi/platsmp.c:138:2-8: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 129, but without a corresponding object release within this function.
Signed-off-by: Wen Yang <wen.yang99@zte.com.cn> Cc: Maxime Ripard <maxime.ripard@bootlin.com> Cc: Chen-Yu Tsai <wens@csie.org> Cc: Russell King <linux@armlinux.org.uk> Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org --- arch/arm/mach-sunxi/platsmp.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/arch/arm/mach-sunxi/platsmp.c b/arch/arm/mach-sunxi/platsmp.c index 8fb5088..c842209 100644 --- a/arch/arm/mach-sunxi/platsmp.c +++ b/arch/arm/mach-sunxi/platsmp.c @@ -50,6 +50,7 @@ static void __init sun6i_smp_prepare_cpus(unsigned int max_cpus) } prcm_membase = of_iomap(node, 0); + of_node_put(node); if (!prcm_membase) { pr_err("Couldn't map A31 PRCM registers\n"); return; @@ -63,6 +64,7 @@ static void __init sun6i_smp_prepare_cpus(unsigned int max_cpus) } cpucfg_membase = of_iomap(node, 0); + of_node_put(node); if (!cpucfg_membase) pr_err("Couldn't map A31 CPU config registers\n"); -- 2.9.5
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