1 files changed, 0 insertions, 5 deletions

diff --git a/arch/um/os-Linux/irq.c b/arch/um/os-Linux/irq.c
index 64c114b02701..7555bf9c33d9 100644
--- a/arch/um/os-Linux/irq.c
+++ b/arch/um/os-Linux/irq.c
@@ -52,11 +52,6 @@ int os_waiting_for_events(struct irq_fd *active_fds)
         return n;
 }
 
-int os_isatty(int fd)
-{
-        return isatty(fd);
-}
-
 int os_create_pollfd(int fd, int events, void *tmp_pfd, int size_tmpfds)
 {
         if (pollfds_num == pollfds_size) {