diff options
| author | Christian Gromm <christian.gromm@microchip.com> | 2016-08-19 11:12:51 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-08-21 16:53:57 +0200 |
| commit | 879c93fefd3dcbce414ffccdf5cbd5685b18afed (patch) | |
| tree | a64ddbbcc0b1a334ab9cdd375b5210a6e5e3ee92 /drivers/staging/most | |
| parent | 654f7ec4b3b8aca70fc7215651b6c45066bf74c1 (diff) | |
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>
Diffstat (limited to 'drivers/staging/most')
| -rw-r--r-- | drivers/staging/most/hdm-usb/hdm_usb.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/staging/most/hdm-usb/hdm_usb.c b/drivers/staging/most/hdm-usb/hdm_usb.c index c2ba5a1834c6..57d6c6d10a03 100644 --- a/drivers/staging/most/hdm-usb/hdm_usb.c +++ b/drivers/staging/most/hdm-usb/hdm_usb.c @@ -418,6 +418,7 @@ static void hdm_write_completion(struct urb *urb) case -EPIPE: dev_warn(dev, "Broken OUT pipe detected\n"); most_stop_enqueue(&mdev->iface, channel); + mdev->is_channel_healthy[channel] = false; mbo->status = MBO_E_INVAL; mdev->clear_work[channel].pipe = urb->pipe; schedule_work(&mdev->clear_work[channel].ws); @@ -582,6 +583,7 @@ static void hdm_read_completion(struct urb *urb) case -EPIPE: dev_warn(dev, "Broken IN pipe detected\n"); most_stop_enqueue(&mdev->iface, channel); + mdev->is_channel_healthy[channel] = false; mbo->status = MBO_E_INVAL; mdev->clear_work[channel].pipe = urb->pipe; schedule_work(&mdev->clear_work[channel].ws); @@ -938,6 +940,7 @@ static void wq_clear_halt(struct work_struct *wq_obj) if (usb_clear_halt(mdev->usb_device, pipe)) dev_warn(&mdev->usb_device->dev, "Failed to reset endpoint.\n"); + mdev->is_channel_healthy[channel] = true; most_resume_enqueue(&mdev->iface, channel); mutex_unlock(&mdev->io_mutex); } |