diff options
Diffstat (limited to 'drivers/pinctrl/core.c')
| -rw-r--r-- | drivers/pinctrl/core.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/pinctrl/core.c b/drivers/pinctrl/core.c index ff06582103c0..faeb8726aee0 100644 --- a/drivers/pinctrl/core.c +++ b/drivers/pinctrl/core.c @@ -357,14 +357,17 @@ static bool pinctrl_ready_for_gpio_range(unsigned gpio) /* Loop over the pin controllers */ list_for_each_entry(pctldev, &pinctrldev_list, node) { /* Loop over the ranges */ + mutex_lock(&pctldev->mutex); list_for_each_entry(range, &pctldev->gpio_ranges, node) { /* Check if any gpio range overlapped with gpio chip */ if (range->base + range->npins - 1 < chip->base || range->base > chip->base + chip->ngpio - 1) continue; + mutex_unlock(&pctldev->mutex); mutex_unlock(&pinctrldev_list_mutex); return true; } + mutex_unlock(&pctldev->mutex); } mutex_unlock(&pinctrldev_list_mutex); |