pinctrl: fix mutex deadlock in get_pinctrl_dev_from_of_node()

This obvious bug was introduced by d755910b7 ("pinctrl: move subsystem
mutex to pinctrl_dev struct").

Signed-off-by: Daniel Mack <zonque@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

diff --git a/drivers/pinctrl/core.c b/drivers/pinctrl/core.c
index c3d222ed39a2585a388425f39259723f2a25bd83..5327f35d9b5cd6d12147faf7fd93556157c1c6f4 100644 (file)
--- a/drivers/pinctrl/core.c
+++ b/drivers/pinctrl/core.c
@@ -129,7 +129,7 @@ struct pinctrl_dev *get_pinctrl_dev_from_of_node(struct device_node *np)
                        return pctldev;
                }
 
-       mutex_lock(&pinctrldev_list_mutex);
+       mutex_unlock(&pinctrldev_list_mutex);
 
        return NULL;
 }