"cinergyt2_poll()" shouldn't return (POLLIN | POLLRDNORM | POLLPRI) when there are no pending events. User space programs that do non-bocking IO using "select()" and/or "poll()" would otherwise produce high system load. See http://forum.videolan.org/viewtopic.php?t=20529 for details. Signed-off-by: Axel Dyks <xl@xxxxxxxxxxxx> --- linux-2.6.16.orig/drivers/media/dvb/cinergyT2/cinergyT2.c 2006-03-20 06:53:29.000000000 +0100 +++ linux-2.6.16/drivers/media/dvb/cinergyT2/cinergyT2.c 2006-05-13 01:15:24.000000000 +0200 @@ -540,15 +540,18 @@ { struct dvb_device *dvbdev = file->private_data; struct cinergyt2 *cinergyt2 = dvbdev->priv; + unsigned int mask = 0; if (cinergyt2->disconnect_pending || down_interruptible(&cinergyt2->sem)) return -ERESTARTSYS; poll_wait(file, &cinergyt2->poll_wq, wait); + if (cinergyt2->pending_fe_events != 0) mask |= (POLLIN | POLLRDNORM | POLLPRI); + up(&cinergyt2->sem); - return (POLLIN | POLLRDNORM | POLLPRI); + return mask; } _______________________________________________ linux-dvb@xxxxxxxxxxx http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb
