diff options
| author | Jonathan Sims <jonathan.625266@earthlink.net> | 2016-10-23 20:19:07 +0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2016-11-16 16:30:30 +0100 |
| commit | a503ff812430e104f591287b512aa4e3a83f20b1 (patch) | |
| tree | c239d23a831fecc942aa51e994eae36eeea2fd66 | |
| parent | [media] v4l: Document that m2m devices have a file handle specific context (diff) | |
| download | linux-a503ff812430e104f591287b512aa4e3a83f20b1.tar.xz linux-a503ff812430e104f591287b512aa4e3a83f20b1.zip | |
[media] hdpvr: fix interrupted recording
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@vger.kernel.org/msg75163.html
were made and tested.
I have implemented the suggested changes and have been testing for the
last 2 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@earthlink.net>
Reported-by: Ryley Angus <ryleyjangus@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
| -rw-r--r-- | drivers/media/usb/hdpvr/hdpvr-video.c | 22 |
1 files changed, 19 insertions, 3 deletions
diff --git a/drivers/media/usb/hdpvr/hdpvr-video.c b/drivers/media/usb/hdpvr/hdpvr-video.c index e3e7682d0f0e..7fb036d6a86e 100644 --- a/drivers/media/usb/hdpvr/hdpvr-video.c +++ b/drivers/media/usb/hdpvr/hdpvr-video.c @@ -449,6 +449,7 @@ static ssize_t hdpvr_read(struct file *file, char __user *buffer, size_t count, if (buf->status != BUFSTAT_READY && dev->status != STATUS_DISCONNECTED) { + int err; /* return nonblocking */ if (file->f_flags & O_NONBLOCK) { if (!ret) @@ -456,9 +457,24 @@ 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; + err = wait_event_interruptible_timeout(dev->wait_data, + buf->status == BUFSTAT_READY, + msecs_to_jiffies(1000)); + if (err < 0) { + ret = err; + goto err; + } + if (!err) { + v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev, + "timeout: restart streaming\n"); + hdpvr_stop_streaming(dev); + msecs_to_jiffies(4000); + err = hdpvr_start_streaming(dev); + if (err) { + ret = err; + goto err; + } + } } if (buf->status != BUFSTAT_READY) |