V4L/DVB: tm6000: Partially revert some copybuf logic
Partially revert changeset 0208bef609242a2d50b95edc713a41566cae500b:
As pointed by Stefan Ringel <stefan.ringel@arcor.de>, many packets become
damaged by this change. That means that the "size" field of Video/VBI is not
presenting 180 bytes, as it should be expected.
Thanks-to: Stefan Ringel <stefan.ringel@arcor.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/staging/tm6000/tm6000-video.c b/drivers/staging/tm6000/tm6000-video.c
index fd36b36..ce0a089 100644
--- a/drivers/staging/tm6000/tm6000-video.c
+++ b/drivers/staging/tm6000/tm6000-video.c
@@ -314,7 +314,7 @@
break;
}
}
- if (cpysize < size) {
+ if (ptr + pktsize > endp) {
/* End of URB packet, but cmd processing is not
* complete. Preserve the state for a next packet
*/
@@ -322,7 +322,7 @@
dev->isoc_ctl.size = size - cpysize;
dev->isoc_ctl.cmd = cmd;
dev->isoc_ctl.pktsize = pktsize - (endp - ptr);
- ptr += cpysize;
+ ptr += endp - ptr;
} else {
dev->isoc_ctl.cmd = 0;
ptr += pktsize;