[media] msi3101: fix stream re-start halt
Restarting stream fails quite often. Small delay is between urb killing and stream stop command - likely to give harware some time to process killed urbs. Signed-off-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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@ -959,7 +959,7 @@ static int msi3101_ctrl_msg(struct msi3101_state *s, u8 cmd, u32 data)
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msi3101_dbg_usb_control_msg(s->udev,
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request, requesttype, value, index, NULL, 0);
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ret = usb_control_msg(s->udev, usb_rcvctrlpipe(s->udev, 0),
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ret = usb_control_msg(s->udev, usb_sndctrlpipe(s->udev, 0),
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request, requesttype, value, index, NULL, 0, 2000);
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if (ret)
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@ -1300,12 +1300,15 @@ static int msi3101_stop_streaming(struct vb2_queue *vq)
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if (mutex_lock_interruptible(&s->v4l2_lock))
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return -ERESTARTSYS;
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msi3101_ctrl_msg(s, CMD_STOP_STREAMING, 0);
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if (s->udev)
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msi3101_isoc_cleanup(s);
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msi3101_cleanup_queued_bufs(s);
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/* according to tests, at least 700us delay is required */
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msleep(20);
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msi3101_ctrl_msg(s, CMD_STOP_STREAMING, 0);
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mutex_unlock(&s->v4l2_lock);
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return 0;
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