pinctrl: Fix two deadlocks

[cascardo/linux.git] / drivers / pinctrl / core.c

diff --git a/drivers/pinctrl/core.c b/drivers/pinctrl/core.c
index e4f6551..89dca77 100644 (file)
--- a/drivers/pinctrl/core.c
+++ b/drivers/pinctrl/core.c
@@ -1801,14 +1801,15 @@ void pinctrl_unregister(struct pinctrl_dev *pctldev)
        if (pctldev == NULL)
                return;
 
-       mutex_lock(&pinctrldev_list_mutex);
        mutex_lock(&pctldev->mutex);
-
        pinctrl_remove_device_debugfs(pctldev);
+       mutex_unlock(&pctldev->mutex);
 
        if (!IS_ERR(pctldev->p))
                pinctrl_put(pctldev->p);
 
+       mutex_lock(&pinctrldev_list_mutex);
+       mutex_lock(&pctldev->mutex);
        /* TODO: check that no pinmuxes are still active? */
        list_del(&pctldev->node);
        /* Destroy descriptor tree */