From: Dean Anderson <dean@xxxxxxxxxxxx>
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@xxxxxxxxxxxx>
--- v4l-dvb-83712d149893/linux/drivers/media/video/s2255drv.c.orig 2009-04-30 07:34:34.000000000 -0700
+++ v4l-dvb-83712d149893/linux/drivers/media/video/s2255drv.c 2009-04-30 07:27:10.000000000 -0700
@@ -2240,8 +2240,10 @@ static void read_pipe_completion(struct
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;
}
@@ -2250,9 +2252,13 @@ static void read_pipe_completion(struct
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,
@@ -2264,7 +2270,6 @@ static void read_pipe_completion(struct
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");
--
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