1 files changed, 4 insertions, 3 deletions
diff --git a/src/libstddjb/fd_ensure_open.c b/src/libstddjb/fd_ensure_open.c
index c42c90e..4c1b63c 100644
--- a/src/libstddjb/fd_ensure_open.c
+++ b/src/libstddjb/fd_ensure_open.c
@@ -2,18 +2,19 @@
 
 #include <errno.h>
 #include <fcntl.h>
+
 #include <skalibs/djbunix.h>
 
 int fd_ensure_open (int fd, int w)
 {
   int dummy ;
-  if (fcntl(fd, F_GETFD, &dummy) < 0)
+  if (fcntl(fd, F_GETFD, &dummy) == -1)
   {
     int newfd ;
     if (errno != EBADF) return 0 ;
     newfd = open2("/dev/null", w ? O_WRONLY : O_RDONLY) ;
-    if (newfd < 0) return 0 ;
-    if (fd_move(fd, newfd) < 0)
+    if (newfd == -1) return 0 ;
+    if (fd_move(fd, newfd) == -1)
     {
       fd_close(newfd) ;
       return 0 ;