diff --git a/drivers/hid/hid-mcp2221.c b/drivers/hid/hid-mcp2221.c
index 33603b019f97..a9fd7648515d 100644
--- a/drivers/hid/hid-mcp2221.c
+++ b/drivers/hid/hid-mcp2221.c
@@ -945,7 +945,7 @@ static int mcp2221_raw_event(struct hid_device *hdev,
 		switch (data[1]) {
 		case MCP2221_SUCCESS:
 			if ((data[mcp->gp_idx] == MCP2221_ALT_F_NOT_GPIOV) ||
-				(data[mcp->gp_idx - 1] == MCP2221_ALT_F_NOT_GPIOV)) {
+				(mcp->gp_idx > 0 &&data[mcp->gp_idx - 1] == MCP2221_ALT_F_NOT_GPIOV)) {
 				mcp->status = -ENOENT;
 			} else {
 				mcp->status = 0;