mesa/program_cache: calloc the correct size for the cache.

Coverity reported this, and I think this is the right solution,
since cache->items is struct cache_item ** not struct cache_item *,
we also realloc it using struct cache_item * at some point.

Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
1 file changed