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path: root/drivers/media/usb/stkwebcam
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Diffstat (limited to 'drivers/media/usb/stkwebcam')
-rw-r--r--drivers/media/usb/stkwebcam/stk-webcam.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/media/usb/stkwebcam/stk-webcam.c b/drivers/media/usb/stkwebcam/stk-webcam.c
index 45d73e2f3e57..c43c8d32be40 100644
--- a/drivers/media/usb/stkwebcam/stk-webcam.c
+++ b/drivers/media/usb/stkwebcam/stk-webcam.c
@@ -1046,6 +1046,13 @@ static int stk_vidioc_reqbufs(struct file *filp,
if (is_streaming(dev)
|| (dev->owner && dev->owner != filp))
return -EBUSY;
+ stk_free_buffers(dev);
+ if (rb->count == 0) {
+ stk_camera_write_reg(dev, 0x0, 0x49); /* turn off the LED */
+ unset_initialised(dev);
+ dev->owner = NULL;
+ return 0;
+ }
dev->owner = filp;
/*FIXME If they ask for zero, we must stop streaming and free */