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-rw-r--r--g10/ccid-driver.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/g10/ccid-driver.c b/g10/ccid-driver.c
index 0fc168590..9847748f2 100644
--- a/g10/ccid-driver.c
+++ b/g10/ccid-driver.c
@@ -423,6 +423,9 @@ read_device_info (ccid_driver_t handle, struct usb_device *dev)
struct usb_config_descriptor *config = dev->config + cfg_no;
int ifc_no;
+ if(!config)
+ continue;
+
for (ifc_no=0; ifc_no < config->bNumInterfaces; ifc_no++)
{
struct usb_interface *interface = config->interface + ifc_no;
@@ -564,7 +567,12 @@ ccid_open_reader (ccid_driver_t *handle, int readerno)
usb_find_busses();
usb_find_devices();
+
+#ifdef HAVE_USB_GET_BUSSES
busses = usb_get_busses();
+#else
+ busses = usb_busses;
+#endif
for (bus = busses; bus; bus = bus->next)
{