vp9/decoder,resize_mv_buffer: add missing alloc check

Change-Id: I3bc92175b07d5ef495bd75128638c340f3c2238f
diff --git a/vp9/decoder/vp9_decodeframe.c b/vp9/decoder/vp9_decodeframe.c
index 8a492d5..9ce137d 100644
--- a/vp9/decoder/vp9_decodeframe.c
+++ b/vp9/decoder/vp9_decodeframe.c
@@ -1221,8 +1221,9 @@
   vpx_free(cm->cur_frame->mvs);
   cm->cur_frame->mi_rows = cm->mi_rows;
   cm->cur_frame->mi_cols = cm->mi_cols;
-  cm->cur_frame->mvs = (MV_REF *)vpx_calloc(cm->mi_rows * cm->mi_cols,
-                                            sizeof(*cm->cur_frame->mvs));
+  CHECK_MEM_ERROR(cm, cm->cur_frame->mvs,
+                  (MV_REF *)vpx_calloc(cm->mi_rows * cm->mi_cols,
+                                       sizeof(*cm->cur_frame->mvs)));
 }
 
 static void resize_context_buffers(VP9_COMMON *cm, int width, int height) {