vc1: fix bitplane buffer size(HSW)

This fixes buffer overflow in the newly allocated Gen buffer
that holds VC-1 bitplanes.

Signed-off-by: Li,Xiaowei <xiaowei.a.li@intel.com>

diff --git a/src/gen75_mfd.c b/src/gen75_mfd.c
index 2b77f7b..2278a29 100644 (file)
--- a/src/gen75_mfd.c
+++ b/src/gen75_mfd.c
@@ -1807,7 +1807,7 @@ gen75_mfd_vc1_decode_init(VADriverContextP ctx,
 
         bo = dri_bo_alloc(i965->intel.bufmgr,
                           "VC-1 Bitplane",
-                          bitplane_width * bitplane_width,
+                          bitplane_width * height_in_mbs,
                           0x1000);
         assert(bo);
         gen7_mfd_context->bitplane_read_buffer.bo = bo;