n-acd: don't use a return value in deallocator

...so that its prototype is compatible with GDestroyNotify:

src/devices/nm-acd-manager.c: In function ‘destroy_address_info’:
/usr/include/glib-2.0/glib/gmem.h:120:31: error: cast between incompatible function types from ‘NAcd * (*)(NAcd *)’ {aka ‘struct NAcd * (*)(struct NAcd *)’} to ‘void (*)(void *)’ [-Werror=cast-function-type]
     GDestroyNotify _destroy = (GDestroyNotify) (destroy);                      \
                               ^
src/devices/nm-acd-manager.c:430:2: note: in expansion of macro ‘g_clear_pointer’
  g_clear_pointer (&info->acd, n_acd_free);
  ^~~~~~~~~~~~~~~

The same change was done upstream, so the subsequent subtree pull of n-acd
won't mess this up.

2 files changed, 3 insertions, 5 deletions

diff --git a/shared/n-acd/src/n-acd.c b/shared/n-acd/src/n-acd.c
index 492bfde4ff..ae149abbf0 100644
--- a/shared/n-acd/src/n-acd.c
+++ b/shared/n-acd/src/n-acd.c
@@ -302,11 +302,11 @@ error:
  *
  * Return: NULL.
  */
-_public_ NAcd *n_acd_free(NAcd *acd) {
+_public_ void n_acd_free(NAcd *acd) {
         NAcdEventNode *node;
 
         if (!acd)
-                return NULL;
+                return;
 
         n_acd_reset(acd);
 
@@ -330,8 +330,6 @@ _public_ NAcd *n_acd_free(NAcd *acd) {
         }
 
         free(acd);
-
-        return NULL;
 }
 
 /**
diff --git a/shared/n-acd/src/n-acd.h b/shared/n-acd/src/n-acd.h
index eb12a53eec..46394dcaa3 100644
--- a/shared/n-acd/src/n-acd.h
+++ b/shared/n-acd/src/n-acd.h
@@ -73,7 +73,7 @@ enum {
 };
 
 int n_acd_new(NAcd **acdp);
-NAcd *n_acd_free(NAcd *acd);
+void n_acd_free(NAcd *acd);
 
 void n_acd_get_fd(NAcd *acd, int *fdp);