1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/nfc/st21nfcb/ndlc.h b/drivers/nfc/st21nfcb/ndlc.h
index c30a2f0faa5f..b28140e0cd78 100644
--- a/drivers/nfc/st21nfcb/ndlc.h
+++ b/drivers/nfc/st21nfcb/ndlc.h
@@ -42,6 +42,10 @@ struct llt_ndlc {
 
         struct device *dev;
 
+        /*
+         * < 0 if hardware error occured
+         * and prevents normal operation.
+         */
         int hard_fault;
 };