Make use of the struct_size() helper instead of an open-coded version in order to avoid any potential type mistakes.
This code was detected with the help of Coccinelle and, audited and fixed manually.
Signed-off-by: Gustavo A. R. Silva gustavoars@kernel.org --- drivers/gpu/drm/vmwgfx/vmwgfx_surface.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c b/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c index 126f93c0b0b8..3914bfee0533 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c @@ -1969,7 +1969,7 @@ static int vmw_surface_dirty_alloc(struct vmw_resource *res) num_mip = 1;
num_subres = num_layers * num_mip; - dirty_size = sizeof(*dirty) + num_subres * sizeof(dirty->boxes[0]); + dirty_size = struct_size(dirty, boxes, num_subres); acc_size = ttm_round_pot(dirty_size); ret = ttm_mem_global_alloc(vmw_mem_glob(res->dev_priv), acc_size, &ctx);