eth: remove usb-ethernet devices before re-enumerating them
Fix the crash when running several times usb_init() with a USB ethernet
device plugged.
Signed-off-by: Vincent Palatin <vpalatin@chromium.org>
Tested-by: Wolfgang Grandegger <wg@denx.de>
diff --git a/drivers/usb/eth/usb_ether.c b/drivers/usb/eth/usb_ether.c
index 48a30eb..6cad6c8 100644
--- a/drivers/usb/eth/usb_ether.c
+++ b/drivers/usb/eth/usb_ether.c
@@ -127,8 +127,11 @@
old_async = usb_disable_asynch(1); /* asynch transfer not allowed */
- for (i = 0; i < USB_MAX_ETH_DEV; i++)
- memset(&usb_eth[i], 0, sizeof(usb_eth[i]));
+ /* unregister a previously detected device */
+ for (i = 0; i < usb_max_eth_dev; i++)
+ eth_unregister(&usb_eth[i].eth_dev);
+
+ memset(usb_eth, 0, sizeof(usb_eth));
for (i = 0; prob_dev[i].probe; i++) {
if (prob_dev[i].before_probe)