diff --git a/drivers/s390/crypto/zcrypt_api.c b/drivers/s390/crypto/zcrypt_api.c
index e6854127b4343dc5ee73357472b4c97f7f8a377e..b2737bfeb8bb68e06e64d75923fdf36ba6687574 100644
--- a/drivers/s390/crypto/zcrypt_api.c
+++ b/drivers/s390/crypto/zcrypt_api.c
@@ -224,6 +224,7 @@ static long zcrypt_rsa_modexpo(struct ica_rsa_modexpo *mex)
 	trace_s390_zcrypt_req(mex, TP_ICARSAMODEXPO);
 
 	if (mex->outputdatalength < mex->inputdatalength) {
+		func_code = 0;
 		rc = -EINVAL;
 		goto out;
 	}
@@ -298,6 +299,7 @@ static long zcrypt_rsa_crt(struct ica_rsa_modexpo_crt *crt)
 	trace_s390_zcrypt_req(crt, TP_ICARSACRT);
 
 	if (crt->outputdatalength < crt->inputdatalength) {
+		func_code = 0;
 		rc = -EINVAL;
 		goto out;
 	}
@@ -483,6 +485,7 @@ static long zcrypt_send_ep11_cprb(struct ep11_urb *xcrb)
 
 		targets = kcalloc(target_num, sizeof(*targets), GFP_KERNEL);
 		if (!targets) {
+			func_code = 0;
 			rc = -ENOMEM;
 			goto out;
 		}
@@ -490,6 +493,7 @@ static long zcrypt_send_ep11_cprb(struct ep11_urb *xcrb)
 		uptr = (struct ep11_target_dev __force __user *) xcrb->targets;
 		if (copy_from_user(targets, uptr,
 				   target_num * sizeof(*targets))) {
+			func_code = 0;
 			rc = -EFAULT;
 			goto out_free;
 		}