This is a note to let you know that I've just added the patch titled
ARM: meson: Fix refcount leak in meson_smp_prepare_cpus
to the 5.18-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
arm-meson-fix-refcount-leak-in-meson_smp_prepare_cpu.patch
and it can be found in the queue-5.18 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 8b53e1cafba8db5f9dae5e9c442bfa6b4feceba8
Author: Miaoqian Lin <linmq006@xxxxxxxxx>
Date: Thu May 12 06:16:10 2022 +0400
ARM: meson: Fix refcount leak in meson_smp_prepare_cpus
[ Upstream commit 34d2cd3fccced12b958b8848e3eff0ee4296764c ]
of_find_compatible_node() returns a node pointer with refcount
incremented, we should use of_node_put() on it when done.
Add missing of_node_put() to avoid refcount leak.
Fixes: d850f3e5d296 ("ARM: meson: Add SMP bringup code for Meson8 and Meson8b")
Signed-off-by: Miaoqian Lin <linmq006@xxxxxxxxx>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@xxxxxxxxxxxxxx>
Signed-off-by: Neil Armstrong <narmstrong@xxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20220512021611.47921-1-linmq006@xxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/arch/arm/mach-meson/platsmp.c b/arch/arm/mach-meson/platsmp.c
index 4b8ad728bb42..32ac60b89fdc 100644
--- a/arch/arm/mach-meson/platsmp.c
+++ b/arch/arm/mach-meson/platsmp.c
@@ -71,6 +71,7 @@ static void __init meson_smp_prepare_cpus(const char *scu_compatible,
}
sram_base = of_iomap(node, 0);
+ of_node_put(node);
if (!sram_base) {
pr_err("Couldn't map SRAM registers\n");
return;
@@ -91,6 +92,7 @@ static void __init meson_smp_prepare_cpus(const char *scu_compatible,
}
scu_base = of_iomap(node, 0);
+ of_node_put(node);
if (!scu_base) {
pr_err("Couldn't map SCU registers\n");
return;
