diff --git a/kernel/kmod.c b/kernel/kmod.c
index 44166e3..51a8920 100644
--- a/kernel/kmod.c
+++ b/kernel/kmod.c
@@ -131,14 +131,14 @@
 static int ____call_usermodehelper(void *data)
 {
 	struct subprocess_info *sub_info = data;
-	struct key *old_session;
+	struct key *new_session, *old_session;
 	int retval;
 
 	/* Unblock all signals and set the session keyring. */
-	key_get(sub_info->ring);
+	new_session = key_get(sub_info->ring);
 	flush_signals(current);
 	spin_lock_irq(&current->sighand->siglock);
-	old_session = __install_session_keyring(current, sub_info->ring);
+	old_session = __install_session_keyring(current, new_session);
 	flush_signal_handlers(current, 1);
 	sigemptyset(&current->blocked);
 	recalc_sigpending();