diff options
| author | Haotian Zhang <vulab@iscas.ac.cn> | 2025-10-29 09:42:52 +0800 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2025-10-29 23:37:17 +0100 |
| commit | 002679f79ed605e543fbace465557317cd307c9a (patch) | |
| tree | 4dafc2ad8e6739ba8b14c5fb6d833b8bb4c62304 | |
| parent | f9f4fda15e720686f1b2b436591ab11255e4e85e (diff) | |
pinctrl: stm32: fix hwspinlock resource leak in probe function
In stm32_pctl_probe(), hwspin_lock_request_specific() is called to
request a hwspinlock, but the acquired lock is not freed on multiple
error paths after this call. This causes resource leakage when the
function fails to initialize properly.
Use devm_hwspin_lock_request_specific() instead of
hwspin_lock_request_specific() to automatically manage the hwspinlock
resource lifecycle.
Fixes: 97cfb6cd34f2 ("pinctrl: stm32: protect configuration registers with a hwspinlock")
Signed-off-by: Haotian Zhang <vulab@iscas.ac.cn>
Reviewed-by: Antonio Borneo <antonio.borneo@foss.st.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| -rw-r--r-- | drivers/pinctrl/stm32/pinctrl-stm32.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/pinctrl/stm32/pinctrl-stm32.c b/drivers/pinctrl/stm32/pinctrl-stm32.c index 5f8829fdd985..ceb9e19f2290 100644 --- a/drivers/pinctrl/stm32/pinctrl-stm32.c +++ b/drivers/pinctrl/stm32/pinctrl-stm32.c @@ -1872,7 +1872,7 @@ int stm32_pctl_probe(struct platform_device *pdev) if (hwlock_id == -EPROBE_DEFER) return hwlock_id; } else { - pctl->hwlock = hwspin_lock_request_specific(hwlock_id); + pctl->hwlock = devm_hwspin_lock_request_specific(dev, hwlock_id); } spin_lock_init(&pctl->irqmux_lock); |