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Kieran Mansley - kjm25@cam.ac.uk - 29th July 2004

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* Fixed DEBUG statement that could attempt to dereference a NULL pointer in sys_arch_mbox_fetch()
This commit is contained in:
kieranm 2004-07-29 09:37:46 +00:00
parent c2c5ae818a
commit ce67f2094f
1 changed files with 4 additions and 2 deletions
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6
ports/unix/sys_arch.c
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@ -275,11 +275,13 @@ sys_arch_mbox_fetch(struct sys_mbox *mbox, void **msg, u32_t timeout)
sys_arch_sem_wait(mbox->mutex, 0);
}
LWIP_DEBUGF(SYS_DEBUG, ("sys_mbox_fetch: mbox %p msg %p\n", (void *)mbox, *msg));
if (msg != NULL) {
LWIP_DEBUGF(SYS_DEBUG, ("sys_mbox_fetch: mbox %p msg %p\n", (void *)mbox, *msg));
*msg = mbox->msgs[mbox->first % SYS_MBOX_SIZE];
}
else{
LWIP_DEBUGF(SYS_DEBUG, ("sys_mbox_fetch: mbox %p, null msg\n", (void *)mbox));
}
mbox->first++;