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Fixed NULL pointer dereference in tilemap_set_flip_all() when game has no tilemaps (no whatsnew)

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Phil Bennett 2009-12-19 14:04:10 +00:00
parent c3fb047204
commit 123f4decc7
1 changed files with 4 additions and 0 deletions
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4
src/emu/tilemap.c
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@ -476,6 +476,10 @@ void tilemap_set_flip(tilemap *tmap, UINT32 attributes)
void tilemap_set_flip_all(running_machine *machine, UINT32 attributes) void tilemap_set_flip_all(running_machine *machine, UINT32 attributes)
{ {
tilemap *tmap; tilemap *tmap;
if (machine->tilemap_data == NULL)
return;
for (tmap = machine->tilemap_data->list; tmap != NULL; tmap = tmap->next) for (tmap = machine->tilemap_data->list; tmap != NULL; tmap = tmap->next)
tilemap_set_flip(tmap, attributes); tilemap_set_flip(tmap, attributes);
} }