IMA: fix non-ANSI declaration of ima_check_policy()

ima_check_policy() has no parameters, so use the normal void
parameter convention to make it match the prototype in the header file
security/integrity/ima/ima.h

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
diff --git a/security/integrity/ima/ima_policy.c b/security/integrity/ima/ima_policy.c
index 0a3b781..e0e18cc 100644
--- a/security/integrity/ima/ima_policy.c
+++ b/security/integrity/ima/ima_policy.c
@@ -417,7 +417,7 @@
 }
 
 /* Make sure we have a valid policy, at least containing some rules. */
-int ima_check_policy()
+int ima_check_policy(void)
 {
 	if (list_empty(&ima_temp_rules))
 		return -EINVAL;