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| author | Axel Lin <axel.lin@ingics.com> | 2013-08-18 20:34:22 +0800 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2013-08-23 08:56:27 +0200 |
| commit | f0059021084137b4ffd2ffc7ee4b62a895c4c84a (patch) | |
| tree | 1ee24558547d5aebe9b5ce2a93ecc330738c7e68 /drivers/pinctrl | |
| parent | 031b8ce01b93aca6f3fb8982994f7015a9f73953 (diff) | |
| download | linux-f0059021084137b4ffd2ffc7ee4b62a895c4c84a.tar.bz2 | |
pinctrl: core: Hold pinctrldev_list_mutex mutex while traversing pinctrldev_list
This one is missed in commit 44d5f7bb "pinctrl: sink pinctrldev_list_mutex".
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/pinctrl')
| -rw-r--r-- | drivers/pinctrl/core.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/pinctrl/core.c b/drivers/pinctrl/core.c index a97b717e3ad3..ff06582103c0 100644 --- a/drivers/pinctrl/core.c +++ b/drivers/pinctrl/core.c @@ -392,6 +392,8 @@ static int pinctrl_get_device_gpio_range(unsigned gpio, { struct pinctrl_dev *pctldev = NULL; + mutex_lock(&pinctrldev_list_mutex); + /* Loop over the pin controllers */ list_for_each_entry(pctldev, &pinctrldev_list, node) { struct pinctrl_gpio_range *range; @@ -400,10 +402,13 @@ static int pinctrl_get_device_gpio_range(unsigned gpio, if (range != NULL) { *outdev = pctldev; *outrange = range; + mutex_unlock(&pinctrldev_list_mutex); return 0; } } + mutex_unlock(&pinctrldev_list_mutex); + return -EPROBE_DEFER; } |