gallivm: fix a maybe-uninitialized warning

/home/marek/dev/mesa-main/src/gallium/auxiliary/gallivm/lp_bld_sample_soa.c:3598:
 warning: 'level' may be used uninitialized in this function [-Wmaybe-uninitialized]
       out1 = lp_build_cmp(&leveli_bld, PIPE_FUNC_GREATER, level, last_level);
            ^

1 files changed, 1 insertions, 1 deletions

diff --git a/src/gallium/auxiliary/gallivm/lp_bld_sample_soa.c b/src/gallium/auxiliary/gallivm/lp_bld_sample_soa.c
index 161a03f3524..cb4660e424d 100644
--- a/src/gallium/auxiliary/gallivm/lp_bld_sample_soa.c
+++ b/src/gallium/auxiliary/gallivm/lp_bld_sample_soa.c
@@ -3462,7 +3462,7 @@ lp_build_size_query_soa(struct gallivm_state *gallivm,
                         struct lp_sampler_dynamic_state *dynamic_state,
                         const struct lp_sampler_size_query_params *params)
 {
-   LLVMValueRef lod, level, size;
+   LLVMValueRef lod, level = 0, size;
    LLVMValueRef first_level = NULL;
    int dims, i;
    boolean has_array;