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Diffstat (limited to 'drivers/media/video/usbvision/usbvision-core.c')
| -rw-r--r-- | drivers/media/video/usbvision/usbvision-core.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/media/video/usbvision/usbvision-core.c b/drivers/media/video/usbvision/usbvision-core.c index c7d5f9ed22d7..2038d409f1dc 100644 --- a/drivers/media/video/usbvision/usbvision-core.c +++ b/drivers/media/video/usbvision/usbvision-core.c @@ -2242,14 +2242,18 @@ static void call_usbvision_power_off(struct work_struct *work) struct usb_usbvision *usbvision = container_of(work, struct usb_usbvision, powerOffWork); PDEBUG(DBG_FUNC, ""); - down_interruptible(&usbvision->lock); + if(mutex_lock_interruptible(&usbvision->lock)) { + return; + } + + if(usbvision->user == 0) { usbvision_i2c_unregister(usbvision); usbvision_power_off(usbvision); usbvision->initialized = 0; } - up(&usbvision->lock); + mutex_unlock(&usbvision->lock); } static void usbvision_powerOffTimer(unsigned long data) |