../drivers/net/usb/lan78xx.c:2520:6: warning: variable 'ret' set but not used [-Wunused-but-set-variable]
 2520 |         int ret;
      |             ^
1 warning generated.
../drivers/net/usb/lan78xx.c:2524:6: warning: variable 'ret' set but not used [-Wunused-but-set-variable]
 2524 |         int ret;
      |             ^
1 warning generated.