Messages in this thread Patch in this message | | | From | Wen Yang <> | Subject | [PATCH 06/15] arm: npcm: fix a leaked reference by addingmissing of_node_put | Date | Fri, 1 Mar 2019 16:56:47 +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-npcm/platsmp.c:52:1-7: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 31, but without a corresponding object release within this function. ./arch/arm/mach-npcm/platsmp.c:68:2-8: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 60, but without a corresponding object release within this function.
Signed-off-by: Wen Yang <wen.yang99@zte.com.cn> Cc: Avi Fishman <avifishman70@gmail.com> Cc: Tomer Maimon <tmaimon77@gmail.com> Cc: Patrick Venture <venture@google.com> Cc: Nancy Yuen <yuenn@google.com> Cc: Brendan Higgins <brendanhiggins@google.com> Cc: Russell King <linux@armlinux.org.uk> Cc: linux-arm-kernel@lists.infradead.org Cc: openbmc@lists.ozlabs.org Cc: linux-kernel@vger.kernel.org --- arch/arm/mach-npcm/platsmp.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/arch/arm/mach-npcm/platsmp.c b/arch/arm/mach-npcm/platsmp.c index 21633c7..fe63edc 100644 --- a/arch/arm/mach-npcm/platsmp.c +++ b/arch/arm/mach-npcm/platsmp.c @@ -35,6 +35,7 @@ static int npcm7xx_smp_boot_secondary(unsigned int cpu, goto out; } gcr_base = of_iomap(gcr_np, 0); + of_node_put(gcr_np); if (!gcr_base) { pr_err("could not iomap gcr"); ret = -ENOMEM; @@ -63,6 +64,7 @@ static void __init npcm7xx_smp_prepare_cpus(unsigned int max_cpus) return; } scu_base = of_iomap(scu_np, 0); + of_node_put(scu_np); if (!scu_base) { pr_err("could not iomap scu"); return; -- 2.9.5
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