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Add missing NULL pointer check to DCB list handling

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The thread specific list removal function didn't check whether the last
item was NULL before proceeding to alter the latest tail pointer.
This commit is contained in:
Markus Makela
2016-11-24 09:36:37 +02:00
parent b32af705e6
commit b09bf56127
1 changed files with 5 additions and 1 deletions
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6
server/core/dcb.c
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@ -3446,7 +3446,11 @@ static void dcb_remove_from_list(DCB *dcb)
{
DCB *tail = all_dcbs[dcb->thread.id]->thread.tail;
all_dcbs[dcb->thread.id] = all_dcbs[dcb->thread.id]->thread.next;
all_dcbs[dcb->thread.id]->thread.tail = tail;
if (all_dcbs[dcb->thread.id])
{
all_dcbs[dcb->thread.id]->thread.tail = tail;
}
}
else
{