From 978c3d52701afe5ccd2fcae854b6b2bcc24bc10a Mon Sep 17 00:00:00 2001
From: Laurent Bercot <ska-skaware@skarnet.org>
Date: Thu, 6 May 2021 17:32:21 +0000
Subject:  Cosmetic fix

---
 src/mdevd/mdevd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/mdevd/mdevd.c b/src/mdevd/mdevd.c
index ba65fe8..06324eb 100644
--- a/src/mdevd/mdevd.c
+++ b/src/mdevd/mdevd.c
@@ -537,7 +537,7 @@ static inline int wait_for_loading (char const *sysdevpath, size_t sysdevpathlen
     tain_add_g(&deadline, &period) ;
     deepsleepuntil_g(&deadline) ;
   }
-  if (ndelay_off(lfd) < 0)
+  if (lfd >= 0 && ndelay_off(lfd) < 0)
   {
     fd_close(lfd) ;
     return -1 ;
-- 
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