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V4L/DVB (11738): patch: s2255drv: urb completion routine fixes

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Error count in read pipe completion corrected.
URB not resubmitted if shutting down.
URB not freed in completion routine if new urb_submit_fails.
(URB is freed on shutdown).

Signed-off-by: Dean Anderson <dean@sensoray.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Dean Anderson 2009-04-30 12:29:38 -03:00 committed by Mauro Carvalho Chehab
parent 1fcbcc47d3
commit b02064caeb
1 changed files with 10 additions and 5 deletions
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15
drivers/media/video/s2255drv.c
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@ -2281,8 +2281,10 @@ static void read_pipe_completion(struct urb *purb)
return;
}
status = purb->status;
if (status != 0) {
dprintk(2, "read_pipe_completion: err\n");
/* if shutting down, do not resubmit, exit immediately */
if (status == -ESHUTDOWN) {
dprintk(2, "read_pipe_completion: err shutdown\n");
pipe_info->err_count++;
return;
}
@ -2291,9 +2293,13 @@ static void read_pipe_completion(struct urb *purb)
return;
}
s2255_read_video_callback(dev, pipe_info);
if (status == 0)
s2255_read_video_callback(dev, pipe_info);
else {
pipe_info->err_count++;
dprintk(1, "s2255drv: failed URB %d\n", status);
}
pipe_info->err_count = 0;
pipe = usb_rcvbulkpipe(dev->udev, dev->read_endpoint);
/* reuse urb */
usb_fill_bulk_urb(pipe_info->stream_urb, dev->udev,
@ -2305,7 +2311,6 @@ static void read_pipe_completion(struct urb *purb)
if (pipe_info->state != 0) {
if (usb_submit_urb(pipe_info->stream_urb, GFP_KERNEL)) {
dev_err(&dev->udev->dev, "error submitting urb\n");
usb_free_urb(pipe_info->stream_urb);
}
} else {
dprintk(2, "read pipe complete state 0\n");