audit: Fix possible return value truncation in audit_get_context()

The audit subsystem treats syscall return codes as type long, unfortunately
the audit_get_context() function mistakenly converts the return code to an
int type in the parameters which could cause problems on systems where the
sizeof(int) != sizeof(long).

Signed-off-by: Paul Moore <paul.moore@hp.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/kernel/auditsc.c b/kernel/auditsc.c
index b344b86..e821d62 100644
--- a/kernel/auditsc.c
+++ b/kernel/auditsc.c
@@ -752,7 +752,7 @@
 
 static inline struct audit_context *audit_get_context(struct task_struct *tsk,
 						      int return_valid,
-						      int return_code)
+						      long return_code)
 {
 	struct audit_context *context = tsk->audit_context;