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staging: most: hdm-usb: make use of is_channel_healthy flag
This patch makes the write completion handler use the is_channel_healthy flag to prevent the hdm from scheduling a second clear_halt workqueue in case an endpoint reported a STALL condition. 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 3 additions and 0 deletions
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@ -418,6 +418,7 @@ static void hdm_write_completion(struct urb *urb)
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case -EPIPE:
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dev_warn(dev, "Broken OUT pipe detected\n");
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most_stop_enqueue(&mdev->iface, channel);
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mdev->is_channel_healthy[channel] = false;
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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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@ -582,6 +583,7 @@ static void hdm_read_completion(struct urb *urb)
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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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mdev->is_channel_healthy[channel] = false;
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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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@ -938,6 +940,7 @@ 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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mdev->is_channel_healthy[channel] = true;
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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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