diff --git a/drivers/platform/x86/hp-wmi.c b/drivers/platform/x86/hp-wmi.c
index 847f75601591..530d8d9bbdbb 100644
--- a/drivers/platform/x86/hp-wmi.c
+++ b/drivers/platform/x86/hp-wmi.c
@@ -90,7 +90,7 @@ struct bios_args {
 	u32 command;
 	u32 commandtype;
 	u32 datasize;
-	u32 data;
+	u8 data[128];
 };
 
 struct bios_return {
@@ -199,7 +199,7 @@ static int hp_wmi_perform_query(int query, int write, void *buffer,
 		.command = write ? 0x2 : 0x1,
 		.commandtype = query,
 		.datasize = insize,
-		.data = 0,
+		.data = { 0 },
 	};
 	struct acpi_buffer input = { sizeof(struct bios_args), &args };
 	struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
@@ -207,7 +207,7 @@ static int hp_wmi_perform_query(int query, int write, void *buffer,
 
 	if (WARN_ON(insize > sizeof(args.data)))
 		return -EINVAL;
-	memcpy(&args.data, buffer, insize);
+	memcpy(&args.data[0], buffer, insize);
 
 	wmi_evaluate_method(HPWMI_BIOS_GUID, 0, 0x3, &input, &output);