net: usb: rtl8150 fix unintiatilzed variables in rtl8150_get_link_ksettings

This functions retrieves values by passing a pointer. As the function
that retrieves them can fail before touching the pointers, the variables
must be initialized.

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Reported-by: [e-mail]
Signed-off-by: Oliver Neukum <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Jakub Kicinski <[e-mail]>

drivers/net/usb/rtl8150.c

···
 				      struct ethtool_link_ksettings *ecmd)
 {
 	rtl8150_t *dev = netdev_priv(netdev);
-	short lpa, bmcr;
+	short lpa = 0;
+	short bmcr = 0;
 	u32 supported;
 
 	supported = (SUPPORTED_10baseT_Half |