diff options
| author | Jonathan Corbet <corbet@lwn.net> | 2010-04-30 09:45:51 -0600 |
|---|---|---|
| committer | Jonathan Corbet <corbet@lwn.net> | 2010-05-07 17:17:40 -0600 |
| commit | 27fe971d08b43f649358745a55f3c48ac6f413f8 (patch) | |
| tree | b9ac11243bb57db206952f81e5b596f2108a8140 | |
| parent | 2b78a963c800252a0016785813cc5140c006145c (diff) | |
| download | kernel_samsung_aries-27fe971d08b43f649358745a55f3c48ac6f413f8.zip kernel_samsung_aries-27fe971d08b43f649358745a55f3c48ac6f413f8.tar.gz kernel_samsung_aries-27fe971d08b43f649358745a55f3c48ac6f413f8.tar.bz2 | |
viafb: Do not remove gpiochip under spinlock
gpiochip_remove() is not meant to be called with interrupts disabled, and
there is no need for the lock here in any case.
Reported-by: Bruno Prémont <bonbons@linux-vserver.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
| -rw-r--r-- | drivers/video/via/via-gpio.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/video/via/via-gpio.c b/drivers/video/via/via-gpio.c index 44537be..63cb7ac 100644 --- a/drivers/video/via/via-gpio.c +++ b/drivers/video/via/via-gpio.c @@ -246,7 +246,6 @@ static int viafb_gpio_remove(struct platform_device *platdev) unsigned long flags; int ret = 0, i; - spin_lock_irqsave(&gpio_config.vdev->reg_lock, flags); /* * Get unregistered. */ @@ -254,16 +253,16 @@ static int viafb_gpio_remove(struct platform_device *platdev) ret = gpiochip_remove(&gpio_config.gpio_chip); if (ret) { /* Somebody still using it? */ printk(KERN_ERR "Viafb: GPIO remove failed\n"); - goto out; + return ret; } } /* * Disable the ports. */ + spin_lock_irqsave(&gpio_config.vdev->reg_lock, flags); for (i = 0; i < gpio_config.gpio_chip.ngpio; i += 2) viafb_gpio_disable(gpio_config.active_gpios[i]); gpio_config.gpio_chip.ngpio = 0; -out: spin_unlock_irqrestore(&gpio_config.vdev->reg_lock, flags); return ret; } |