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

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@33575 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
Gabor Juhos
2012-09-27 20:05:42 +00:00
parent 0af4307860
commit f2c23625e1
1 changed files with 8 additions and 2 deletions
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10
target/linux/ar71xx/files/arch/mips/ath79/dev-eth.c
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@@ -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;
}