diff --git a/drivers/rpmsg/qcom_glink_native.c b/drivers/rpmsg/qcom_glink_native.c
index 1030cfa80e0439f7f06e62e848e1c9e1b97327d6..f4f4e392d0d19aebd3a1c479ab4fbf1dee887d6e 100644
--- a/drivers/rpmsg/qcom_glink_native.c
+++ b/drivers/rpmsg/qcom_glink_native.c
@@ -792,7 +792,7 @@ static int qcom_glink_rx_defer(struct qcom_glink *glink, size_t extra)
 		return -ENXIO;
 	}
 
-	dcmd = kzalloc(sizeof(*dcmd) + extra, GFP_ATOMIC);
+	dcmd = kzalloc(struct_size(dcmd, data, extra), GFP_ATOMIC);
 	if (!dcmd)
 		return -ENOMEM;