Fix scan_build warnings in vp9_loopfilter.c

BUG=webm:1575

Change-Id: Id70235c801d253d47267c6d34760484f82d5c881

diff --git a/vp9/common/vp9_loopfilter.c b/vp9/common/vp9_loopfilter.c
index 04a93f3b9f3ef664570469f57269a9713f4c647a..95d6029f3b5317a0858e7a48865c456d819673ba 100644 (file)
--- a/vp9/common/vp9_loopfilter.c
+++ b/vp9/common/vp9_loopfilter.c
@@ -1087,13 +1087,19 @@ void vp9_filter_block_plane_non420(VP9_COMMON *cm,
   const int row_step_stride = cm->mi_stride * row_step;
   struct buf_2d *const dst = &plane->dst;
   uint8_t *const dst0 = dst->buf;
-  unsigned int mask_16x16[MI_BLOCK_SIZE] = { 0 };
-  unsigned int mask_8x8[MI_BLOCK_SIZE] = { 0 };
-  unsigned int mask_4x4[MI_BLOCK_SIZE] = { 0 };
-  unsigned int mask_4x4_int[MI_BLOCK_SIZE] = { 0 };
+  unsigned int mask_16x16[MI_BLOCK_SIZE];
+  unsigned int mask_8x8[MI_BLOCK_SIZE];
+  unsigned int mask_4x4[MI_BLOCK_SIZE];
+  unsigned int mask_4x4_int[MI_BLOCK_SIZE];
   uint8_t lfl[MI_BLOCK_SIZE * MI_BLOCK_SIZE];
   int r, c;
 
+  vp9_zero(mask_16x16);
+  vp9_zero(mask_8x8);
+  vp9_zero(mask_4x4);
+  vp9_zero(mask_4x4_int);
+  vp9_zero(lfl);
+
   for (r = 0; r < MI_BLOCK_SIZE && mi_row + r < cm->mi_rows; r += row_step) {
     unsigned int mask_16x16_c = 0;
     unsigned int mask_8x8_c = 0;
@@ -1330,6 +1336,8 @@ void vp9_filter_block_plane_ss11(VP9_COMMON *const cm,
   uint16_t mask_4x4 = lfm->left_uv[TX_4X4];
   uint16_t mask_4x4_int = lfm->int_4x4_uv;
 
+  vp9_zero(lfl_uv);
+
   assert(plane->subsampling_x == 1 && plane->subsampling_y == 1);
 
   // Vertical pass: do 2 rows at one time