cttyhack: fail gracefully if the device node is missing

Signed-off-by: Kevin Cernekee <cernekee@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/shell/cttyhack.c b/shell/cttyhack.c
index 522a1ba73..4261289b4 100644
--- a/shell/cttyhack.c
+++ b/shell/cttyhack.c
@@ -146,7 +146,9 @@ int cttyhack_main(int argc UNUSED_PARAM, char **argv)
                         goto ret;
                 } while (0);
 
-                fd = xopen(console, O_RDWR);
+                fd = open_or_warn(console, O_RDWR);
+                if (fd < 0)
+                        goto ret;
                 //bb_error_msg("switching to '%s'", console);
                 dup2(fd, 0);
                 dup2(fd, 1);