util: firewall: define cleanup function using VIR_DEFINE_AUTOPTR_FUNC

Using the new VIR_DEFINE_AUTOPTR_FUNC macro defined in
src/util/viralloc.h, define a new wrapper around an existing
cleanup function which will be called when a variable declared
with VIR_AUTOPTR macro goes out of scope. Also, drop the redundant
viralloc.h include, since that has moved from the source module into
the header.

When a variable of type virFirewallPtr is declared using
VIR_AUTOPTR, the function virFirewallFree will be run
automatically on it when it goes out of scope.
Signed-off-by: NSukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: NErik Skultety <eskultet@redhat.com>

src/util/virfirewall.c

@@ -27,7 +27,6 @@
 
 #include <stdarg.h>
 
-#include "viralloc.h"
 #include "virfirewallpriv.h"
 #include "virerror.h"
 #include "virutil.h"

src/util/virfirewall.h

@@ -25,6 +25,7 @@
 # define __VIR_FIREWALL_H__
 
 # include "internal.h"
+# include "viralloc.h"
 
 typedef struct _virFirewall virFirewall;
 typedef virFirewall *virFirewallPtr;
@@ -116,4 +117,6 @@ int virFirewallApply(virFirewallPtr firewall);
 
 void virFirewallSetLockOverride(bool avoid);
 
+VIR_DEFINE_AUTOPTR_FUNC(virFirewall, virFirewallFree)
+
 #endif /* __VIR_FIREWALL_H__ */