net, ax25: convert ax25_uid_assoc.refcount from atomic_t to refcount_t

#include <linux/timer.h>

#include <linux/list.h>

#include <linux/slab.h>

#include <linux/atomic.h>

#include <linux/refcount.h>

#include <net/neighbour.h>

#include <net/sock.h>

typedef struct ax25_uid_assoc {

	struct hlist_node	uid_node;

	atomic_t		refcount;

	refcount_t		refcount;

	kuid_t			uid;

	ax25_address		call;

} ax25_uid_assoc;

	hlist_for_each_entry(__ax25, list, uid_node)

#define ax25_uid_hold(ax25) \

	atomic_inc(&((ax25)->refcount))

	refcount_inc(&((ax25)->refcount))

static inline void ax25_uid_put(ax25_uid_assoc *assoc)

{

	if (atomic_dec_and_test(&assoc->refcount)) {

	if (refcount_dec_and_test(&assoc->refcount)) {

		kfree(assoc);

	}

}

		if ((ax25_uid = kmalloc(sizeof(*ax25_uid), GFP_KERNEL)) == NULL)

			return -ENOMEM;

		atomic_set(&ax25_uid->refcount, 1);

		refcount_set(&ax25_uid->refcount, 1);

		ax25_uid->uid  = sax25_kuid;

		ax25_uid->call = sax->sax25_call;