vga: add ram_addr_t cast

Reported by Coverity.

Fixes: CID 1381409
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20171010141323.14049-4-kraxel@redhat.com
(cherry picked from commit b0898b42ef099bc125db1fbf62b7f02b505ef3a2)

diff --git a/hw/display/vga.c b/hw/display/vga.c
index b1cdf36cfa325d639dfb904275c44734a5c14aba..b6a3b95c9309de92deb89a64c4bdf46ac14dc1bc 100644 (file)
--- a/hw/display/vga.c
+++ b/hw/display/vga.c
@@ -1488,7 +1488,7 @@ static void vga_draw_graphic(VGACommonState *s, int full_update)
     disp_width = width;
 
     region_start = (s->start_addr * 4);
-    region_end = region_start + s->line_offset * height;
+    region_end = region_start + (ram_addr_t)s->line_offset * height;
     if (region_end > s->vbe_size) {
         /* wraps around (can happen with cirrus vbe modes) */
         region_start = 0;