diff --git a/drivers/s390/crypto/pkey_api.c b/drivers/s390/crypto/pkey_api.c
index f61fa47135a6c17dbf3660722c7a1ed959fba5dc..8dda5bb34a2f2710c6d0f8fc40b291d3e848d99e 100644
--- a/drivers/s390/crypto/pkey_api.c
+++ b/drivers/s390/crypto/pkey_api.c
@@ -125,10 +125,9 @@ static int alloc_and_prep_cprbmem(size_t paramblen,
 	 * allocate consecutive memory for request CPRB, request param
 	 * block, reply CPRB and reply param block
 	 */
-	cprbmem = kmalloc(2 * cprbplusparamblen, GFP_KERNEL);
+	cprbmem = kzalloc(2 * cprbplusparamblen, GFP_KERNEL);
 	if (!cprbmem)
 		return -ENOMEM;
-	memset(cprbmem, 0, 2 * cprbplusparamblen);
 
 	preqcblk = (struct CPRBX *) cprbmem;
 	prepcblk = (struct CPRBX *) (cprbmem + cprbplusparamblen);