This is a reworking of a patch originally submitted by Ryley Angus, modified by Hans Verkuil and then seemingly forgotten before changes suggested by Keith Pyle here: http://www.mail-archive.com/linux-media@xxxxxxxxxxxxxxx/msg75163.html were made and tested. I have implemented the suggested changes and have been testing for several months. I am no longer experiencing lockups while recording (with blue light on, requiring power cycling) which had been a long standing problem with the HD-PVR. I have not noticed any other problems since applying the patch. Signed-off-by: Jonathan Sims <jonathan.625266@xxxxxxxxxxxxx> --- Changes in v4: - Code cleanups. drivers/media/usb/hdpvr/hdpvr-video.c | 17 ++++++++++++++--- 1 file changed, 14 insertions(+), 3 deletions(-) diff --git a/drivers/media/usb/hdpvr/hdpvr-video.c b/drivers/media/usb/hdpvr/hdpvr-video.c index 474c11e1d495..f8ba28cb40eb 100644 --- a/drivers/media/usb/hdpvr/hdpvr-video.c +++ b/drivers/media/usb/hdpvr/hdpvr-video.c @@ -458,9 +458,20 @@ static ssize_t hdpvr_read(struct file *file, char __user *buffer, size_t count, goto err; } - if (wait_event_interruptible(dev->wait_data, - buf->status == BUFSTAT_READY)) - return -ERESTARTSYS; + ret = wait_event_interruptible_timeout(dev->wait_data, + buf->status == BUFSTAT_READY, + msecs_to_jiffies(1000)); + if (ret < 0) + goto err; + if (!ret) { + v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev, + "timeout: restart streaming\n"); + hdpvr_stop_streaming(dev); + msleep(4000); + ret = hdpvr_start_streaming(dev); + if (ret) + goto err; + } } if (buf->status != BUFSTAT_READY) -- 2.11.1 -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
