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.

1 files changed, 3 insertions, 6 deletions

diff --git a/src/hostname/hostnamed.c b/src/hostname/hostnamed.c
index e90ae54156..e1ce2e6b31 100644
--- a/src/hostname/hostnamed.c
+++ b/src/hostname/hostnamed.c
@@ -64,8 +64,7 @@ static void context_reset(Context *c) {
         assert(c);
 
         for (p = 0; p < _PROP_MAX; p++) {
-                free(c->data[p]);
-                c->data[p] = NULL;
+                c->data[p] = mfree(c->data[p]);
         }
 }
 
@@ -498,8 +497,7 @@ static int method_set_static_hostname(sd_bus_message *m, void *userdata, sd_bus_
                 return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
 
         if (isempty(name)) {
-                free(c->data[PROP_STATIC_HOSTNAME]);
-                c->data[PROP_STATIC_HOSTNAME] = NULL;
+                c->data[PROP_STATIC_HOSTNAME] = mfree(c->data[PROP_STATIC_HOSTNAME]);
         } else {
                 char *h;
 
@@ -570,8 +568,7 @@ static int set_machine_info(Context *c, sd_bus_message *m, int prop, sd_bus_mess
                 return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
 
         if (isempty(name)) {
-                free(c->data[prop]);
-                c->data[prop] = NULL;
+                c->data[prop] = mfree(c->data[prop]);
         } else {
                 char *h;