I got assigned a bug report:
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=34551
Basically, when user's process loops it does not allow
khubd to run. I found that write() never returns an error,
and did not know if it was safe to change that behaviour.
So, here it is, the best band-aid I could do.
-- Pete
--- linux-2.4.3/drivers/usb/printer.c Fri Mar 2 17:50:22 2001
+++ linux-2.4.3-p3/drivers/usb/printer.c Sat Apr 7 21:04:14 2001
@@ -357,13 +357,17 @@
if (usblp->writeurb.status != -EINPROGRESS)
err("usblp%d: error %d writing to printer",
usblp->minor, usblp->writeurb.status);
- err = usblp->writeurb.status;
- continue;
}
else {
err = usblp_check_status(usblp, err);
- continue;
}
+ if (writecount)
+ return writecount;
+ schedule_timeout(50);
+ set_current_state(TASK_RUNNING);
+ if (signal_pending(current))
+ return -EINTR;
+ continue;
}
writecount += usblp->writeurb.transfer_buffer_length;
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