init var to fix missing symtab section path

found by smatch, ok mpi@

diff --git a/usr.sbin/btrace/ksyms.c b/usr.sbin/btrace/ksyms.c
index 960b0d9..422936a 100644 (file)
--- a/usr.sbin/btrace/ksyms.c
+++ b/usr.sbin/btrace/ksyms.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: ksyms.c,v 1.9 2024/03/16 17:42:37 cheloha Exp $ */
+/*     $OpenBSD: ksyms.c,v 1.10 2024/04/01 22:49:04 jsg Exp $ */
 
 /*
  * Copyright (c) 2016 Martin Pieuchot <mpi@openbsd.org>
@@ -51,7 +51,7 @@ kelf_open(const char *path)
        char *name;
        Elf *elf;
        Elf_Data *data = NULL;
-       Elf_Scn *scn = NULL, *symtab;
+       Elf_Scn *scn = NULL, *symtab = NULL;
        GElf_Sym sym;
        GElf_Shdr shdr;
        size_t i, shstrndx, strtabndx = SIZE_MAX, symtab_size;