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Don't crash the kernel when getting a NULL mbuf. I can now ping the

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Haiku box (with the SiS 900 driver) :-)


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16779 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Axel Dörfler 2006-03-14 01:07:01 +00:00
parent 3f56c07d8f
commit 2e37884ff0
1 changed files with 8 additions and 3 deletions
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11
src/add-ons/kernel/network/core/core.c
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@ -232,7 +232,8 @@ control_net_module(const char *name, uint32 op, void *data, size_t length)
}
static int32 if_thread(void *data)
static int32
if_thread(void *data)
{
struct ifnet *i = (struct ifnet *)data;
status_t status;
@ -243,8 +244,12 @@ static int32 if_thread(void *data)
struct mbuf *mb = m_devget(buffer, status, 0, i, NULL);
if (!(i->if_flags & IFF_UP))
break;
IFQ_ENQUEUE(i->devq, mb);
atomic_add(&i->if_ipackets, 1);
if (mb != NULL) {
IFQ_ENQUEUE(i->devq, mb);
atomic_add(&i->if_ipackets, 1);
}
len = ETHER_MAX_LEN;
}
printf("%s: terminating if_thread\n", i->if_name);