diff --git a/module/bdev/error/vbdev_error_rpc.c b/module/bdev/error/vbdev_error_rpc.c
index 1e1e7fb97..fec21253f 100644
--- a/module/bdev/error/vbdev_error_rpc.c
+++ b/module/bdev/error/vbdev_error_rpc.c
@@ -11,37 +11,46 @@
 #include "spdk/log.h"
 #include "vbdev_error.h"
 
-#define ERROR_BDEV_IO_TYPE_INVALID (SPDK_BDEV_IO_TYPE_RESET + 1)
-#define ERROR_BDEV_ERROR_TYPE_INVALID (VBDEV_IO_PENDING + 1)
-
-static uint32_t
-rpc_error_bdev_io_type_parse(char *name)
+static int
+rpc_error_bdev_decode_io_type(const struct spdk_json_val *val, void *out)
 {
-	if (strcmp(name, "read") == 0) {
-		return SPDK_BDEV_IO_TYPE_READ;
-	} else if (strcmp(name, "write") == 0) {
-		return SPDK_BDEV_IO_TYPE_WRITE;
-	} else if (strcmp(name, "flush") == 0) {
-		return SPDK_BDEV_IO_TYPE_FLUSH;
-	} else if (strcmp(name, "unmap") == 0) {
-		return SPDK_BDEV_IO_TYPE_UNMAP;
-	} else if (strcmp(name, "all") == 0) {
-		return 0xffffffff;
-	} else if (strcmp(name, "clear") == 0) {
-		return 0;
+	uint32_t *io_type = out;
+
+	if (spdk_json_strequal(val, "read") == true) {
+		*io_type = SPDK_BDEV_IO_TYPE_READ;
+	} else if (spdk_json_strequal(val, "write") == true) {
+		*io_type = SPDK_BDEV_IO_TYPE_WRITE;
+	} else if (spdk_json_strequal(val, "flush") == true) {
+		*io_type = SPDK_BDEV_IO_TYPE_FLUSH;
+	} else if (spdk_json_strequal(val, "unmap") == true) {
+		*io_type = SPDK_BDEV_IO_TYPE_UNMAP;
+	} else if (spdk_json_strequal(val, "all") == true) {
+		*io_type = 0xffffffff;
+	} else if (spdk_json_strequal(val, "clear") == true) {
+		*io_type = 0;
+	} else {
+		SPDK_NOTICELOG("Invalid parameter value: io_type\n");
+		return -EINVAL;
 	}
-	return ERROR_BDEV_IO_TYPE_INVALID;
+
+	return 0;
 }
 
-static uint32_t
-rpc_error_bdev_error_type_parse(char *name)
+static int
+rpc_error_bdev_decode_error_type(const struct spdk_json_val *val, void *out)
 {
-	if (strcmp(name, "failure") == 0) {
-		return VBDEV_IO_FAILURE;
-	} else if (strcmp(name, "pending") == 0) {
-		return VBDEV_IO_PENDING;
+	uint32_t *error_type = out;
+
+	if (spdk_json_strequal(val, "failure") == true) {
+		*error_type = VBDEV_IO_FAILURE;
+	} else if (spdk_json_strequal(val, "pending") == true) {
+		*error_type = VBDEV_IO_PENDING;
+	} else {
+		SPDK_NOTICELOG("Invalid parameter value: error_type\n");
+		return -EINVAL;
 	}
-	return ERROR_BDEV_ERROR_TYPE_INVALID;
+
+	return 0;
 }
 
 struct rpc_bdev_error_create {
@@ -136,15 +145,15 @@ SPDK_RPC_REGISTER("bdev_error_delete", rpc_bdev_error_delete, SPDK_RPC_RUNTIME)
 
 struct rpc_error_information {
 	char *name;
-	char *io_type;
-	char *error_type;
+	uint32_t io_type;
+	uint32_t error_type;
 	uint32_t num;
 };
 
 static const struct spdk_json_object_decoder rpc_error_information_decoders[] = {
 	{"name", offsetof(struct rpc_error_information, name), spdk_json_decode_string},
-	{"io_type", offsetof(struct rpc_error_information, io_type), spdk_json_decode_string},
-	{"error_type", offsetof(struct rpc_error_information, error_type), spdk_json_decode_string},
+	{"io_type", offsetof(struct rpc_error_information, io_type), rpc_error_bdev_decode_io_type},
+	{"error_type", offsetof(struct rpc_error_information, error_type), rpc_error_bdev_decode_error_type},
 	{"num", offsetof(struct rpc_error_information, num), spdk_json_decode_uint32, true},
 };
 
@@ -152,8 +161,6 @@ static void
 free_rpc_error_information(struct rpc_error_information *p)
 {
 	free(p->name);
-	free(p->io_type);
-	free(p->error_type);
 }
 
 static void
@@ -161,8 +168,6 @@ rpc_bdev_error_inject_error(struct spdk_jsonrpc_request *request,
 			    const struct spdk_json_val *params)
 {
 	struct rpc_error_information req = {.num = 1};
-	uint32_t io_type;
-	uint32_t error_type;
 	int rc = 0;
 
 	if (spdk_json_decode_object(params, rpc_error_information_decoders,
@@ -174,21 +179,7 @@ rpc_bdev_error_inject_error(struct spdk_jsonrpc_request *request,
 		goto cleanup;
 	}
 
-	io_type = rpc_error_bdev_io_type_parse(req.io_type);
-	if (io_type == ERROR_BDEV_IO_TYPE_INVALID) {
-		spdk_jsonrpc_send_error_response(request, -EINVAL,
-						 "Unexpected io_type value");
-		goto cleanup;
-	}
-
-	error_type = rpc_error_bdev_error_type_parse(req.error_type);
-	if (error_type == ERROR_BDEV_ERROR_TYPE_INVALID) {
-		spdk_jsonrpc_send_error_response(request, -EINVAL,
-						 "Unexpected error_type value");
-		goto cleanup;
-	}
-
-	rc = vbdev_error_inject_error(req.name, io_type, error_type, req.num);
+	rc = vbdev_error_inject_error(req.name, req.io_type, req.error_type, req.num);
 	if (rc) {
 		spdk_jsonrpc_send_error_response(request, rc, spdk_strerror(-rc));
 		goto cleanup;