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-rw-r--r--tests/kms_atomic.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/tests/kms_atomic.c b/tests/kms_atomic.c
index 81e20099..1e1bee4d 100644
--- a/tests/kms_atomic.c
+++ b/tests/kms_atomic.c
@@ -374,6 +374,8 @@ plane_immutable_zpos(igt_display_t *display, igt_pipe_t *pipe,
struct igt_fb fb_lower, fb_upper;
uint32_t w_lower, h_lower, w_upper, h_upper;
+ memset(plane_ptr, 0, n_planes * sizeof(igt_plane_t *));
+
igt_require(n_planes >= 2);
mode = igt_output_get_mode(output);