6.6-stable review patch. If anyone has any objections, please let me know.
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From: Javier Carrasco javier.carrasco.cruz@gmail.com
[ Upstream commit e5cfc0989d9a2849c51c720a16b90b2c061a1aeb ]
of_find_compatible_node() increments the node's refcount, and it must be decremented again with a call to of_node_put() when the pointer is no longer required to avoid leaking the resource.
Instead of adding the missing calls to of_node_put() in all execution paths, use the cleanup attribute for 'arm_timer' by means of the __free() macro, which automatically calls of_node_put() when the variable goes out of scope.
Fixes: 25de4ce5ed02 ("clocksource/drivers/timer-ti-dm: Handle dra7 timer wrap errata i940") Signed-off-by: Javier Carrasco javier.carrasco.cruz@gmail.com Link: https://lore.kernel.org/r/20241031-timer-ti-dm-systimer-of_node_put-v3-1-063... Signed-off-by: Daniel Lezcano daniel.lezcano@linaro.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/clocksource/timer-ti-dm-systimer.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/clocksource/timer-ti-dm-systimer.c b/drivers/clocksource/timer-ti-dm-systimer.c index c2dcd8d68e458..d1c144d6f328c 100644 --- a/drivers/clocksource/timer-ti-dm-systimer.c +++ b/drivers/clocksource/timer-ti-dm-systimer.c @@ -686,9 +686,9 @@ subsys_initcall(dmtimer_percpu_timer_startup);
static int __init dmtimer_percpu_quirk_init(struct device_node *np, u32 pa) { - struct device_node *arm_timer; + struct device_node *arm_timer __free(device_node) = + of_find_compatible_node(NULL, NULL, "arm,armv7-timer");
- arm_timer = of_find_compatible_node(NULL, NULL, "arm,armv7-timer"); if (of_device_is_available(arm_timer)) { pr_warn_once("ARM architected timer wrap issue i940 detected\n"); return 0;