[PATCH 0/2] ARM: mstar: fix two device_node refcount leaks in mstarv7.c

Weigang He geoffreyhe2 at gmail.com
Tue Jun 9 22:33:10 PDT 2026


mstarv7.c leaks the device_node reference taken by
of_find_compatible_node() in two __init paths: mstarv7_boot_secondary()
(the "mstar,smpctrl" node) and mstarv7_init() (the "mstar,l3bridge"
node). of_iomap() does not take ownership of the node, so each is a
one-shot device_node refcount leak per boot.

The two leaks were introduced by different commits, so they are split
into one patch each. Both drop the reference right after of_iomap().

Found by static analysis tool CodeQL. The series is build-tested only
(arm, multi_v7_defconfig + CONFIG_ARCH_MSTARV7); I have no mstar
hardware, so runtime testing would be appreciated.

Weigang He (2):
  ARM: mstar: fix device_node refcount leak in mstarv7_boot_secondary()
  ARM: mstar: fix device_node refcount leak in mstarv7_init()

 arch/arm/mach-mstar/mstarv7.c | 2 ++
 1 file changed, 2 insertions(+)


base-commit: 0f61b1860cc3f52aef9036d7235ed1f017632193
-- 
2.43.0




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