tree-wide: use coccinelle to patch a lot of code to use mfree()

This replaces this:

        free(p);
        p = NULL;

by this:

        p = mfree(p);

Change generated using coccinelle. Semantic patch is added to the
sources.

2 files changed, 4 insertions, 9 deletions

diff --git a/src/network/networkd-netdev-tuntap.c b/src/network/networkd-netdev-tuntap.c
index ba84e802fc..6a808b6205 100644
--- a/src/network/networkd-netdev-tuntap.c
+++ b/src/network/networkd-netdev-tuntap.c
@@ -143,11 +143,8 @@ static void tuntap_done(NetDev *netdev) {
 
         assert(t);
 
-        free(t->user_name);
-        t->user_name = NULL;
-
-        free(t->group_name);
-        t->group_name = NULL;
+        t->user_name = mfree(t->user_name);
+        t->group_name = mfree(t->group_name);
 }
 
 static int tuntap_verify(NetDev *netdev, const char *filename) {
diff --git a/src/network/networkd-wait-online-link.c b/src/network/networkd-wait-online-link.c
index 2d5123788c..cacb4c257e 100644
--- a/src/network/networkd-wait-online-link.c
+++ b/src/network/networkd-wait-online-link.c
@@ -120,13 +120,11 @@ int link_update_rtnl(Link *l, sd_netlink_message *m) {
 int link_update_monitor(Link *l) {
         assert(l);
 
-        free(l->operational_state);
-        l->operational_state = NULL;
+        l->operational_state = mfree(l->operational_state);
 
         sd_network_link_get_operational_state(l->ifindex, &l->operational_state);
 
-        free(l->state);
-        l->state = NULL;
+        l->state = mfree(l->state);
 
         sd_network_link_get_setup_state(l->ifindex, &l->state);