CIFS: Remove __exit mark from cifs_exit_dns_resolver()

Remove the __exit mark from cifs_exit_dns_resolver() as it's called by the
module init routine in case of error, and so may have been discarded during
linkage.

Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

fs/cifs/dns_resolve.c

@@ -227,7 +227,7 @@ failed_put_cred:
 	return ret;
 }
 
-void __exit cifs_exit_dns_resolver(void)
+void cifs_exit_dns_resolver(void)
 {
 	key_revoke(dns_resolver_cache->thread_keyring);
 	unregister_key_type(&key_type_dns_resolver);

fs/cifs/dns_resolve.h

@@ -25,7 +25,7 @@
 
 #ifdef __KERNEL__
 extern int __init cifs_init_dns_resolver(void);
-extern void __exit cifs_exit_dns_resolver(void);
+extern void cifs_exit_dns_resolver(void);
 extern int dns_resolve_server_name_to_ip(const char *unc, char **ip_addr);
 #endif /* KERNEL */