ar71xx: avoid possible NULL pointer dereference in ath79_init_{,local}_mac

SVN-Revision: 33575
This commit is contained in:
Gabor Juhos 2012-09-27 20:05:42 +00:00
parent a0df3fa315
commit 170cd7a19a

View file

@ -992,7 +992,10 @@ void __init ath79_init_mac(unsigned char *dst, const unsigned char *src,
{
int t;
if (!is_valid_ether_addr(src)) {
if (!dst)
return;
if (!src || !is_valid_ether_addr(src)) {
memset(dst, '\0', ETH_ALEN);
return;
}
@ -1012,7 +1015,10 @@ void __init ath79_init_local_mac(unsigned char *dst, const unsigned char *src)
{
int i;
if (!is_valid_ether_addr(src)) {
if (!dst)
return;
if (!src || !is_valid_ether_addr(src)) {
memset(dst, '\0', ETH_ALEN);
return;
}