diff --git a/iscsi-scst/kernel/config.c b/iscsi-scst/kernel/config.c
index c94017413..28a16cab4 100644
--- a/iscsi-scst/kernel/config.c
+++ b/iscsi-scst/kernel/config.c
@@ -695,7 +695,7 @@ int iscsi_add_attr(struct iscsi_target *target,
 
 	tgt_attr = kzalloc(sizeof(*tgt_attr), GFP_KERNEL);
 	if (tgt_attr == NULL) {
-		PRINT_ERROR("Unable to allocate user (size %d)",
+		PRINT_ERROR("Unable to allocate user (size %zd)",
 			sizeof(*tgt_attr));
 		res = -ENOMEM;
 		goto out;
diff --git a/scst/src/dev_handlers/scst_vdisk.c b/scst/src/dev_handlers/scst_vdisk.c
index 5e515cb14..a591cafaf 100644
--- a/scst/src/dev_handlers/scst_vdisk.c
+++ b/scst/src/dev_handlers/scst_vdisk.c
@@ -294,7 +294,7 @@ static ssize_t vdisk_add_blockio_device(const char *device_name, char *params);
 static ssize_t vdisk_add_nullio_device(const char *device_name, char *params);
 static ssize_t vdisk_del_device(const char *device_name);
 static ssize_t vcdrom_add_device(const char *device_name, char *params);
-static int vcdrom_del_device(const char *device_name);
+static ssize_t vcdrom_del_device(const char *device_name);
 #endif
 static int vdisk_task_mgmt_fn(struct scst_mgmt_cmd *mcmd,
 	struct scst_tgt_dev *tgt_dev);
@@ -3496,7 +3496,7 @@ out:
 
 }
 
-static int vcdrom_del_device(const char *device_name)
+static ssize_t vcdrom_del_device(const char *device_name)
 {
 	int res = 0;
 	struct scst_vdisk_dev *virt_dev;