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| author | Javier Carrasco <javier.carrasco.cruz@gmail.com> | 2024-10-31 13:54:23 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-12-14 19:53:19 +0100 |
| commit | 713e85376bac76b5dc6d8c6ade6a3a40870107f9 (patch) | |
| tree | 875ea3b3d04c392ea36cf62748f5f3751983edc0 /drivers/clocksource | |
| parent | b5b6e8a1bac8f2ffc2f33a0f9423987a6b2a489e (diff) | |
| download | linux-713e85376bac76b5dc6d8c6ade6a3a40870107f9.tar.gz linux-713e85376bac76b5dc6d8c6ade6a3a40870107f9.tar.bz2 linux-713e85376bac76b5dc6d8c6ade6a3a40870107f9.zip | |
clocksource/drivers/timer-ti-dm: Fix child node refcount handling
[ 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-v3-1-063ee822b73a@gmail.com
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/clocksource')
| -rw-r--r-- | drivers/clocksource/timer-ti-dm-systimer.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/clocksource/timer-ti-dm-systimer.c b/drivers/clocksource/timer-ti-dm-systimer.c index 632523c1232f..734920e8c575 100644 --- a/drivers/clocksource/timer-ti-dm-systimer.c +++ b/drivers/clocksource/timer-ti-dm-systimer.c @@ -688,9 +688,9 @@ 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; |