[AFS]: Fix use of __exit functions from __init path

Fix use of __exit functions from __init path.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/fs/afs/vlocation.c b/fs/afs/vlocation.c
index 6c8e95a..3370cdb 100644
--- a/fs/afs/vlocation.c
+++ b/fs/afs/vlocation.c
@@ -602,7 +602,7 @@
 /*
  * discard all the volume location records for rmmod
  */
-void __exit afs_vlocation_purge(void)
+void afs_vlocation_purge(void)
 {
 	afs_vlocation_timeout = 0;