1 files changed, 4 insertions, 4 deletions

diff --git a/libbb/termios.c b/libbb/termios.c
index c05bb6dbb..1291bf785 100644
--- a/libbb/termios.c
+++ b/libbb/termios.c
@@ -169,6 +169,8 @@ static int cygwin_tcgetattr(int fd, struct termios *t)
 {
         int tty = fd_to_tty(fd);
         struct shared_info *si = get_shared_info();
+        if (tty < 0 || !si)
+                return -1;
         *t = si->tty.ttys[tty].tty_min.ti;
         return 0;
 }
@@ -177,11 +179,9 @@ static int cygwin_tcgetattr(int fd, struct termios *t)
 static int cygwin_tcsetattr(int fd, int mode, const struct termios *t)
 {
         int tty = fd_to_tty(fd);
-        struct shared_info *si;
-
-        if (tty < 0)
+        struct shared_info *si = get_shared_info();
+        if (tty < 0 || !si)
                 return -1;
-        si = get_shared_info();
         si->tty.ttys[tty].tty_min.ti = *t;
         return 0;
 }