From 0f580386b6ad295c04c1b32120826494f8a29c1c Mon Sep 17 00:00:00 2001 From: Thomas Hellstrom Date: Thu, 19 Jan 2017 11:01:04 -0800 Subject: [PATCH] drm/vmwgfx: Fix a potential integer overflow Found by coverity. Signed-off-by: Thomas Hellstrom Reviewed-by: Sinclair Yeh Reviewed-by: Charmaine Lee --- drivers/gpu/drm/vmwgfx/vmwgfx_kms.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c index 7d3cb7824fa1..d492d57d5309 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c @@ -1671,7 +1671,7 @@ int vmw_kms_update_layout_ioctl(struct drm_device *dev, void *data, * 1. Bounding box (assuming 32bpp) must be < prim_bb_mem * 2. Total pixels (assuming 32bpp) must be < prim_bb_mem */ - u64 bb_mem = bounding_box.w * bounding_box.h * 4; + u64 bb_mem = (u64) bounding_box.w * bounding_box.h * 4; u64 pixel_mem = total_pixels * 4; if (bb_mem > dev_priv->prim_bb_mem) { -- 2.20.1