Fix kernel-doc comment typo '@id'

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/lib/idr.c b/lib/idr.c
index e15502e..e0abbc1 100644
--- a/lib/idr.c
+++ b/lib/idr.c
@@ -858,7 +858,7 @@
  * and go back to the idr_pre_get() call.  If the idr is full, it will
  * return %-ENOSPC.
  *
- * @id returns a value in the range %0 ... %0x7fffffff.
+ * @p_id returns a value in the range %0 ... %0x7fffffff.
  */
 int ida_get_new(struct ida *ida, int *p_id)
 {