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staging: most: hdm-usb: stop core from submitting buffers in case of broken pipe
This patch ensures that no more packets are submitted by the core in case an USB endpoint has reported a broken pipe (-EPIPE). Signed-off-by: Andrey Shvetsov <andrey.shvetsov@k2l.de> Signed-off-by: Christian Gromm <christian.gromm@microchip.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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1 changed files with 2 additions and 2 deletions
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@ -580,6 +580,7 @@ static void hdm_read_completion(struct urb *urb)
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switch (urb->status) {
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case -EPIPE:
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dev_warn(dev, "Broken IN pipe detected\n");
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most_stop_enqueue(&mdev->iface, channel);
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mbo->status = MBO_E_INVAL;
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mdev->clear_work[channel].pipe = urb->pipe;
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schedule_work(&mdev->clear_work[channel].ws);
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@ -936,8 +937,7 @@ static void wq_clear_halt(struct work_struct *wq_obj)
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if (usb_clear_halt(mdev->usb_device, pipe))
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dev_warn(&mdev->usb_device->dev, "Failed to reset endpoint.\n");
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if (mdev->conf[channel].direction & MOST_CH_TX)
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most_resume_enqueue(&mdev->iface, channel);
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most_resume_enqueue(&mdev->iface, channel);
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mutex_unlock(&mdev->io_mutex);
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}
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