gallium/swr: Fix various asserts and security issues

To improve the robustness of the code, we want to better
detect issues in testing (using asserts) and use more
secure techniques.

Reviewed-by: Krzysztof Raszkowski <[email protected]>
Tested-by: Marge Bot <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/3710>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/3710>

1 files changed, 2 insertions, 1 deletions

diff --git a/src/gallium/auxiliary/gallivm/lp_bld_init.c b/src/gallium/auxiliary/gallivm/lp_bld_init.c
index efc0096a744..6206d79cc54 100644
--- a/src/gallium/auxiliary/gallivm/lp_bld_init.c
+++ b/src/gallium/auxiliary/gallivm/lp_bld_init.c
@@ -450,7 +450,7 @@ lp_build_init(void)
        */
       lp_native_vector_width = 128;
    }
- 
+
    lp_native_vector_width = debug_get_num_option("LP_NATIVE_VECTOR_WIDTH",
                                                  lp_native_vector_width);
 
@@ -513,6 +513,7 @@ gallivm_create(const char *name, LLVMContextRef context)
       }
    }
 
+   assert(gallivm != NULL);
    return gallivm;
 }