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Fix a bug introduced by revision 1.59 that would cause an immediate

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NULL dereference if a bridged packet was rejected by ipfw.
This commit is contained in:
Ian Dowse 2002-12-27 16:27:45 +00:00
parent 8da5b3e292
commit bf235b1710
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=108319
1 changed files with 1 additions and 1 deletions
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2
sys/net/bridge.c
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@ -799,11 +799,11 @@ static struct mbuf *
bdg_forward(struct mbuf *m0, struct ifnet *dst)
{
#define EH_RESTORE(_m) do { \
M_PREPEND((_m), ETHER_HDR_LEN, M_DONTWAIT); \
if ((_m) == NULL) { \
bdg_dropped++; \
return NULL; \
} \
M_PREPEND((_m), ETHER_HDR_LEN, M_DONTWAIT); \
if (eh != mtod((_m), struct ether_header *)) \
bcopy(&save_eh, mtod((_m), struct ether_header *), ETHER_HDR_LEN); \
else \