[Qemu-devel] [PATCH] usb: Use usb_bus_find(-1) instead of usb_enabled() in usb_device_add/usb_device_del

[Lin Ma]

Without usb=on machine option, usb_device_add/usb_device_del don't work,
Even if there are virtual usb controllers presented.

This patch fixes it.

Signed-off-by: Lin Ma <l...@suse.com>
---
 vl.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/vl.c b/vl.c
index 1d4c089..26fab83 100644
--- a/vl.c
+++ b/vl.c
@@ -1234,7 +1234,7 @@ static int usb_device_add(const char *devname)
     const char *p;
 #endif
 
-    if (!usb_enabled()) {
+    if (!usb_bus_find(-1)) {
         return -1;
     }
 
@@ -1266,7 +1266,7 @@ static int usb_device_del(const char *devname)
         return -1;
     }
 
-    if (!usb_enabled()) {
+    if (!usb_bus_find(-1)) {
         return -1;
     }
 
-- 
2.1.4