diff --git a/drivers/s390/crypto/zcrypt_api.c b/drivers/s390/crypto/zcrypt_api.c
index eba07f8ef308..74036886ca87 100644
--- a/drivers/s390/crypto/zcrypt_api.c
+++ b/drivers/s390/crypto/zcrypt_api.c
@@ -1300,9 +1300,6 @@ void zcrypt_device_status_mask_ext(struct zcrypt_device_status_ext *devstatus)
 	struct zcrypt_device_status_ext *stat;
 	int card, queue;
 
-	memset(devstatus, 0, MAX_ZDEV_ENTRIES_EXT
-	       * sizeof(struct zcrypt_device_status_ext));
-
 	spin_lock(&zcrypt_list_lock);
 	for_each_zcrypt_card(zc) {
 		for_each_zcrypt_queue(zq, zc) {
@@ -1607,9 +1604,9 @@ static long zcrypt_unlocked_ioctl(struct file *filp, unsigned int cmd,
 		size_t total_size = MAX_ZDEV_ENTRIES_EXT
 			* sizeof(struct zcrypt_device_status_ext);
 
-		device_status = kvmalloc_array(MAX_ZDEV_ENTRIES_EXT,
-					       sizeof(struct zcrypt_device_status_ext),
-					       GFP_KERNEL);
+		device_status = kvcalloc(MAX_ZDEV_ENTRIES_EXT,
+					 sizeof(struct zcrypt_device_status_ext),
+					 GFP_KERNEL);
 		if (!device_status)
 			return -ENOMEM;
 		zcrypt_device_status_mask_ext(device_status);
diff --git a/drivers/s390/crypto/zcrypt_ccamisc.c b/drivers/s390/crypto/zcrypt_ccamisc.c
index 6087547328ce..7bef2cc4e461 100644
--- a/drivers/s390/crypto/zcrypt_ccamisc.c
+++ b/drivers/s390/crypto/zcrypt_ccamisc.c
@@ -1762,9 +1762,9 @@ static int findcard(u64 mkvp, u16 *pcardnr, u16 *pdomain,
 		return -EINVAL;
 
 	/* fetch status of all crypto cards */
-	device_status = kvmalloc_array(MAX_ZDEV_ENTRIES_EXT,
-				       sizeof(struct zcrypt_device_status_ext),
-				       GFP_KERNEL);
+	device_status = kvcalloc(MAX_ZDEV_ENTRIES_EXT,
+				 sizeof(struct zcrypt_device_status_ext),
+				 GFP_KERNEL);
 	if (!device_status)
 		return -ENOMEM;
 	zcrypt_device_status_mask_ext(device_status);
@@ -1878,9 +1878,9 @@ int cca_findcard2(u32 **apqns, u32 *nr_apqns, u16 cardnr, u16 domain,
 	struct cca_info ci;
 
 	/* fetch status of all crypto cards */
-	device_status = kvmalloc_array(MAX_ZDEV_ENTRIES_EXT,
-				       sizeof(struct zcrypt_device_status_ext),
-				       GFP_KERNEL);
+	device_status = kvcalloc(MAX_ZDEV_ENTRIES_EXT,
+				 sizeof(struct zcrypt_device_status_ext),
+				 GFP_KERNEL);
 	if (!device_status)
 		return -ENOMEM;
 	zcrypt_device_status_mask_ext(device_status);
diff --git a/drivers/s390/crypto/zcrypt_ep11misc.c b/drivers/s390/crypto/zcrypt_ep11misc.c
index 9bcf8fc69ebe..b43db17a4e0e 100644
--- a/drivers/s390/crypto/zcrypt_ep11misc.c
+++ b/drivers/s390/crypto/zcrypt_ep11misc.c
@@ -1588,9 +1588,9 @@ int ep11_findcard2(u32 **apqns, u32 *nr_apqns, u16 cardnr, u16 domain,
 	struct ep11_card_info eci;
 
 	/* fetch status of all crypto cards */
-	device_status = kvmalloc_array(MAX_ZDEV_ENTRIES_EXT,
-				       sizeof(struct zcrypt_device_status_ext),
-				       GFP_KERNEL);
+	device_status = kvcalloc(MAX_ZDEV_ENTRIES_EXT,
+				 sizeof(struct zcrypt_device_status_ext),
+				 GFP_KERNEL);
 	if (!device_status)
 		return -ENOMEM;
 	zcrypt_device_status_mask_ext(device_status);