[Xen-devel] [PATCH 4/4] fix a pvusb type check

[Chunyan Liu <cyliu@xxxxxxxx>]

Missing a check of controller type.

Signed-off-by: Chunyan Liu <cyliu@xxxxxxxx>
CC: Simon Cao <caobosimon@xxxxxxxxx>
CC: George Dunlap <george.dunlap@xxxxxxxxxx>
CC: Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>
CC: Juergen Gross <jgross@xxxxxxxx>
---
This affects Juergen's qusb patch too. Fix that together. This patch
could be applied on top of Juergen's qusb backend patch.

 tools/libxl/libxl_pvusb.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/tools/libxl/libxl_pvusb.c b/tools/libxl/libxl_pvusb.c
index 02d3e55..6447639 100644
--- a/tools/libxl/libxl_pvusb.c
+++ b/tools/libxl/libxl_pvusb.c
@@ -811,6 +811,13 @@ static int libxl__device_usbdev_setdefault(libxl__gc *gc,
                 }
             }
 
+            if (usbctrl->type != LIBXL_USBCTRL_TYPE_PV &&
+                usbctrl->type != LIBXL_USBCTRL_TYPE_QUSB) {
+                LOG(ERROR, "Unsupported USB controller type");
+                rc = ERROR_FAIL;
+                goto out;
+            }
+
             rc = libxl__device_usbctrl_add_xenstore(gc, domid, usbctrl,
                                                     update_json);
             if (rc) goto out;
-- 
2.1.4


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