From 906f94da76802b2aae4dd052018766f5378ae4b8 Mon Sep 17 00:00:00 2001
From: 0xAX <0xAX@users.noreply.github.com>
Date: Sat, 20 Aug 2016 01:51:54 +0300
Subject: [PATCH] terminal-util: remove unnecessary check of result of isatty()
 (#4000)

After the call of the isatty() we check its result twice in the
open_terminal(). There are no sense to check result of isatty() that
it is less than zero and return -errno, because as described in
documentation:

isatty() returns 1 if fd is an open file descriptor referring to a
terminal;  otherwise 0 is returned, and errno is set to indicate the
error.

So it can't be less than zero.
---
 src/basic/terminal-util.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/src/basic/terminal-util.c b/src/basic/terminal-util.c
index 215b76488..efd35cd72 100644
--- a/src/basic/terminal-util.c
+++ b/src/basic/terminal-util.c
@@ -347,12 +347,7 @@ int open_terminal(const char *name, int mode) {
         }
 
         r = isatty(fd);
-        if (r < 0) {
-                safe_close(fd);
-                return -errno;
-        }
-
-        if (!r) {
+        if (r == 0) {
                 safe_close(fd);
                 return -ENOTTY;
         }
-- 
2.30.2