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pc-dimm: fix error messages if no slots were defined 

If no slots were defined we try to allocate an empty bitmap, which
fails.

Signed-off-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Marcel Apfelbaum <marcel@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20180427120515.24067-1-david@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
David Hildenbrand 2018-04-27 14:05:15 +02:00 committed by Paolo Bonzini
parent 814e1110d5
commit 3ff333effa
1 changed files with 8 additions and 1 deletions
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9
hw/mem/pc-dimm.c
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@ -118,9 +118,16 @@ static int pc_dimm_slot2bitmap(Object *obj, void *opaque)
int pc_dimm_get_free_slot(const int *hint, int max_slots, Error **errp)
{
unsigned long *bitmap = bitmap_new(max_slots);
unsigned long *bitmap;
int slot = 0;
if (max_slots <= 0) {
error_setg(errp, "no slots where allocated, please specify "
"the 'slots' option");
return slot;
}
bitmap = bitmap_new(max_slots);
object_child_foreach(qdev_get_machine(), pc_dimm_slot2bitmap, bitmap);
/* check if requested slot is not occupied */