sssctl: Fix warning may be used uninitialized

gcc 7 probably does some new optimisations which might cause few
wariables to be uninitialized.

src/tools/sssctl/sssctl_cache.c: In function ‘sssctl_print_object’:
src/tools/sssctl/sssctl_cache.c:523:13: error: ‘dom’ may be used uninitialized
  in this function [-Werror=maybe-uninitialized]
         ret = info[i].attr_fn(tmp_ctx, entry, dom, info[i].attr, &value);
         ~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
src/tools/sssctl/sssctl_cache.c:472:15: error: ‘entry’ may be used
  uninitialized in this function [-Werror=maybe-uninitialized]
     *_entry = talloc_steal(mem_ctx, entry);
               ^~~~~~~~~~~~
src/tools/sssctl/sssctl_cache.c:437:25: note: ‘entry’ was declared here
     struct sysdb_attrs *entry;
                         ^~~~~

Another workaround would be to remove static modifier from function
sssctl_find_object which probably prevents some inlinig + optimisation.

Reviewed-by: Fabiano Fidêncio <fidencio@redhat.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/src/tools/sssctl/sssctl_cache.c b/src/tools/sssctl/sssctl_cache.c
index 59c8cb473..8f0fc281b 100644
--- a/src/tools/sssctl/sssctl_cache.c
+++ b/src/tools/sssctl/sssctl_cache.c
@@ -434,8 +434,8 @@ static errno_t sssctl_fetch_object(TALLOC_CTX *mem_ctx,
                                    struct sss_domain_info **_dom)
 {
     TALLOC_CTX *tmp_ctx;
-    struct sysdb_attrs *entry;
-    struct sss_domain_info *dom;
+    struct sysdb_attrs *entry = NULL;
+    struct sss_domain_info *dom = NULL;
     const char **attrs;
     char *sanitized;
     errno_t ret;