[coreboot] New patch to review for coreboot: 6200319 libpayload: Handle errors in UHCI interrupt queues
Nico Huber (nico.huber@secunet.com)
gerrit at coreboot.org
Fri Nov 23 15:01:01 CET 2012
Nico Huber (nico.huber at secunet.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/1901
-gerrit
commit 6200319695c67521bb2cf0725b58eba2b44e463f
Author: Nico Huber <nico.huber at secunet.com>
Date: Thu Nov 22 11:12:13 2012 +0100
libpayload: Handle errors in UHCI interrupt queues
If somethings goes wrong during an interrupt transfer, drop the
transfer.
Change-Id: I450c08a7a0bf23fbee74237e0355d4a726ace114
Signed-off-by: Nico Huber <nico.huber at secunet.com>
---
payloads/libpayload/drivers/usb/uhci.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/payloads/libpayload/drivers/usb/uhci.c b/payloads/libpayload/drivers/usb/uhci.c
index 386392b..bf611d2 100644
--- a/payloads/libpayload/drivers/usb/uhci.c
+++ b/payloads/libpayload/drivers/usb/uhci.c
@@ -572,7 +572,6 @@ uhci_poll_intr_queue (void *q_)
{
intr_q *q = (intr_q*)q_;
if ((q->tds[q->lastread].ctrlsts & TD_STATUS_ACTIVE) == 0) {
- /* FIXME: handle errors */
int current = q->lastread;
int previous;
if (q->lastread == 0) {
@@ -588,7 +587,8 @@ uhci_poll_intr_queue (void *q_)
}
q->tds[previous].ctrlsts |= TD_STATUS_ACTIVE;
q->lastread = (q->lastread + 1) % q->total;
- return &q->data[current*q->reqsize];
+ if (!(q->tds[current].ctrlsts & TD_STATUS_MASK))
+ return &q->data[current*q->reqsize];
}
/* reset queue if we fully processed it after underrun */
else if (q->qh->elementlinkptr & FLISTP_TERMINATE) {
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