usb-bus: fix no params

After commit 702f3e0fb52c124c07f215426eeadb70a716643f, the params is
nerver NULL. It should check *params instead of params to determine
whether the params is empty.

Signed-off-by: TeLeMan <geleman@gmail.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

diff --git a/hw/usb-bus.c b/hw/usb-bus.c
index ce8a6946ad944a8c63951be15c5584f8dd3dcb19..ee0e9e30e7f62481f94901e4b457b9c513aa0da3 100644 (file)
--- a/hw/usb-bus.c
+++ b/hw/usb-bus.c
@@ -299,7 +299,7 @@ USBDevice *usbdevice_create(const char *cmdline)
     }
 
     if (!usb->usbdevice_init) {
-        if (params) {
+        if (*params) {
             error_report("usbdevice %s accepts no params", driver);
             return NULL;
         }