dom0+vm/kernel: fix backend not do honor URB transfer buffer freeing requests

12 years ago · 4f9a1404eb
parent 25733b422e
commit 4f9a1404eb
2 changed files with 14 additions and 1 deletions
--- a/patches.xen/pvops-3.4-0101-usb-xen-pvusb-driver-bugfix.patch
+++ b/patches.xen/pvops-3.4-0101-usb-xen-pvusb-driver-bugfix.patch
@ -0,0 +1,13 @@
+diff -pur linux-3.4.18.orig/drivers/usb/host/xen-usbback/usbback.c linux-3.4.18/drivers/usb/host/xen-usbback/usbback.c
+--- linux-3.4.18.orig/drivers/usb/host/xen-usbback/usbback.c	2012-11-20 00:03:57.562663987 +0100
+++ linux-3.4.18/drivers/usb/host/xen-usbback/usbback.c	2012-12-09 16:16:36.395197677 +0100
+@@ -582,6 +582,8 @@
+ 		break;
+ 	}
+ 
+	urb->transfer_flags &= ~(URB_FREE_BUFFER);
+
+ 	if (req->buffer_length) {
+ 		urb->transfer_dma = pending_req->transfer_dma;
+ 		urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
+diff -pur linux-3.4.18.orig/drivers/usb/host/xen-usbfront.c linux-3.4.18/drivers/usb/host/xen-usbfront.c
--- a/2
+++ b/2
@ -1 +1 @@
-1
+1debug20121209b