shared: remove pointless checks in auto-cleanup functions

The argument given to the __attribute__((cleanup)) functions is the
address of the variable that's going out of scope. It cannot be NULL.
The "if (!s)" check in set_freep() is pointless.

Perhaps "if (!*s)" was intented. But that's pointless too, because
set_free()/set_free_free() are OK to call with a NULL argument (just
like free()).

Setting "*s = NULL" is pointless, because the variable that s points
to is about to go out of scope.

The same holds for strv_freep().

2 files changed, 0 insertions, 12 deletions

diff --git a/src/shared/set.c b/src/shared/set.c
index cd910d70ab..111d53bb36 100644
--- a/src/shared/set.c
+++ b/src/shared/set.c
@@ -38,11 +38,7 @@ void set_free(Set* s) {
 }
 
 void set_freep(Set **s) {
-        if (!s)
-                return;
-
         set_free(*s);
-        *s = NULL;
 }
 
 void set_free_free(Set *s) {
@@ -50,11 +46,7 @@ void set_free_free(Set *s) {
 }
 
 void set_free_freep(Set **s) {
-        if (!*s)
-                return;
-
         set_free_free(*s);
-        *s = NULL;
 }
 
 int set_ensure_allocated(Set **s, hash_func_t hash_func, compare_func_t compare_func) {
diff --git a/src/shared/strv.c b/src/shared/strv.c
index 60c4762572..117382ed80 100644
--- a/src/shared/strv.c
+++ b/src/shared/strv.c
@@ -65,11 +65,7 @@ void strv_free(char **l) {
 }
 
 void strv_freep(char ***l) {
-        if (!l)
-                return;
-
         strv_free(*l);
-        *l = NULL;
 }
 
 char **strv_copy(char **l) {