[PATCH] selinux: various sparse fixes

[Paul Moore <paul@xxxxxxxxxxxxxx>]

When running the SELinux code through sparse, there are a handful of
warnings.  This patch resolves some of these warnings by casting away
the "__rcu" attribute in a few core kernel function calls.

 % make W=1 C=1 security/selinux/

Signed-off-by: Paul Moore <paul@xxxxxxxxxxxxxx>
---
 security/selinux/hooks.c |    7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index c057896e7dcd..da04f3435268 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -2534,7 +2534,7 @@ static void selinux_bprm_committed_creds(struct linux_binprm *bprm)
 	if (rc) {
 		clear_itimer();
 
-		spin_lock_irq(&current->sighand->siglock);
+		spin_lock_irq((__force spinlock_t *)&current->sighand->siglock);
 		if (!fatal_signal_pending(current)) {
 			flush_sigqueue(&current->pending);
 			flush_sigqueue(&current->signal->shared_pending);
@@ -2542,13 +2542,14 @@ static void selinux_bprm_committed_creds(struct linux_binprm *bprm)
 			sigemptyset(&current->blocked);
 			recalc_sigpending();
 		}
-		spin_unlock_irq(&current->sighand->siglock);
+		spin_unlock_irq((__force spinlock_t *)&current->sighand->siglock);
 	}
 
 	/* Wake up the parent if it is waiting so that it can recheck
 	 * wait permission to the new task SID. */
 	read_lock(&tasklist_lock);
-	__wake_up_parent(current, current->real_parent);
+	__wake_up_parent(current,
+			 (__force struct task_struct *)current->real_parent);
 	read_unlock(&tasklist_lock);
 }