From 6052482f841634522c6d2e56c4231f8df2dc6d3e Mon Sep 17 00:00:00 2001 From: David Faust Date: Tue, 15 Nov 2022 09:21:51 -0800 Subject: [PATCH] bpf: avoid possible use of uninitialized variable Fix a maybe-uninitialized warning introduced in commit: 068baae1864 bpf: add preserve_field_info builtin gcc/ * config/bpf/bpf.cc (bpf_expand_builtin): Avoid use of uninitialized variable in error case. --- gcc/config/bpf/bpf.cc | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/gcc/config/bpf/bpf.cc b/gcc/config/bpf/bpf.cc index 16af2412bf6b..51e469550151 100644 --- a/gcc/config/bpf/bpf.cc +++ b/gcc/config/bpf/bpf.cc @@ -1254,11 +1254,14 @@ bpf_expand_builtin (tree exp, rtx target ATTRIBUTE_UNUSED, /* A resolved overloaded __builtin_preserve_field_info. */ tree src = CALL_EXPR_ARG (exp, 0); tree kind_tree = CALL_EXPR_ARG (exp, 1); - unsigned HOST_WIDE_INT kind_val; + unsigned HOST_WIDE_INT kind_val = 0; if (tree_fits_uhwi_p (kind_tree)) kind_val = tree_to_uhwi (kind_tree); else - error ("invalid argument to built-in function"); + { + error ("invalid argument to built-in function"); + return expand_normal (error_mark_node); + } enum btf_core_reloc_kind kind = (enum btf_core_reloc_kind) kind_val; -- 2.47.3