static DEFINE_MUTEX(mutex);
static LIST_HEAD(int_list);
-static void v4l2_int_device_try_attach_all(void)
+void v4l2_int_device_try_attach_all(void)
{
- struct list_head *head_master;
-
- list_for_each(head_master, &int_list) {
- struct list_head *head_slave;
- struct v4l2_int_device *m =
- list_entry(head_master, struct v4l2_int_device, head);
+ struct v4l2_int_device *m, *s;
+ list_for_each_entry(m, &int_list, head) {
if (m->type != v4l2_int_type_master)
continue;
- list_for_each(head_slave, &int_list) {
- struct v4l2_int_device *s =
- list_entry(head_slave,
- struct v4l2_int_device, head);
-
+ list_for_each_entry(s, &int_list, head) {
if (s->type != v4l2_int_type_slave)
continue;
if (!try_module_get(m->module))
continue;
- if (m->u.master->attach(m, s)) {
+ s->u.slave->master = m;
+ if (m->u.master->attach(s)) {
+ s->u.slave->master = NULL;
module_put(m->module);
continue;
}
-
- s->u.slave->master = m;
}
}
}
+EXPORT_SYMBOL_GPL(v4l2_int_device_try_attach_all);
static int ioctl_sort_cmp(const void *a, const void *b)
{
return 0;
}
+EXPORT_SYMBOL_GPL(v4l2_int_device_register);
void v4l2_int_device_unregister(struct v4l2_int_device *d)
{
}
mutex_unlock(&mutex);
}
+EXPORT_SYMBOL_GPL(v4l2_int_device_unregister);
/* Adapted from search_extable in extable.c. */
static v4l2_int_ioctl_func *find_ioctl(struct v4l2_int_slave *slave, int cmd,
static int no_such_ioctl_0(struct v4l2_int_device *d)
{
- return -EINVAL;
+ return -ENOIOCTLCMD;
}
int v4l2_int_ioctl_0(struct v4l2_int_device *d, int cmd)
{
return ((v4l2_int_ioctl_func_0 *)
find_ioctl(d->u.slave, cmd,
- (v4l2_int_ioctl_func *)&no_such_ioctl_0))(d);
+ (v4l2_int_ioctl_func *)no_such_ioctl_0))(d);
}
+EXPORT_SYMBOL_GPL(v4l2_int_ioctl_0);
static int no_such_ioctl_1(struct v4l2_int_device *d, void *arg)
{
- return -EINVAL;
+ return -ENOIOCTLCMD;
}
int v4l2_int_ioctl_1(struct v4l2_int_device *d, int cmd, void *arg)
{
return ((v4l2_int_ioctl_func_1 *)
find_ioctl(d->u.slave, cmd,
- (v4l2_int_ioctl_func *)&no_such_ioctl_1))(d, arg);
+ (v4l2_int_ioctl_func *)no_such_ioctl_1))(d, arg);
}
+EXPORT_SYMBOL_GPL(v4l2_int_ioctl_1);
+
+MODULE_LICENSE("GPL");