anv: add null check for buffer before reading size
Fixes: b9a05447 ("anv: dynamic vertex input binding stride and size support") Signed-off-by: Tapani Pälli tapani.palli@intel.com
Fixes: b9a05447 ("anv: dynamic vertex input binding stride and size support") Signed-off-by: Tapani Pälli tapani.palli@intel.com