From 26ee025e0e7db358e58a8685ff49544a647e300e Mon Sep 17 00:00:00 2001
From: Christian Grothoff <christian@grothoff.org>
Date: Fri, 27 Mar 2020 13:55:30 +0100
Subject: check close() rvalues

---
 src/main.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/main.c b/src/main.c
index 1718ca2..0eb3eb9 100644
--- a/src/main.c
+++ b/src/main.c
@@ -987,7 +987,7 @@ mdb_shutdown (void)
   }
   if (-1 != mdb.uartfd)
   {
-    (void) close (mdb.uartfd);
+    GNUNET_break (0 == close (mdb.uartfd));
     mdb.uartfd = -1;
   }
   GNUNET_log (GNUNET_ERROR_TYPE_INFO,
@@ -1072,10 +1072,10 @@ shutdown_task (void *cls)
                   "failed to reset originial display state\n");
     }
     /* close the device */
-    close (qrDisplay.devicefd);
+    GNUNET_break (0 == close (qrDisplay.devicefd));
     qrDisplay.devicefd = -1;
     if (0 < qrDisplay.backlightfd)
-      close (qrDisplay.backlightfd);
+      GNUNET_break (0 == close (qrDisplay.backlightfd));
     qrDisplay.backlightfd = -1;
   }
   if (0 < cancel_button.cancelbuttonfd)
-- 
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