askfirst: remove superfluous 'close' calls on stdio file descriptors.

'dup2' will do it for us if necessary.

Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>

diff --git a/askfirst.c b/askfirst.c
index 2f948f8..9916486 100644 (file)
--- a/askfirst.c
+++ b/askfirst.c
@@ -31,10 +31,6 @@ static int redirect_output(const char *dev)
        if (fd < 0)
                return -1;
 
-       close(STDIN_FILENO);
-       close(STDOUT_FILENO);
-       close(STDERR_FILENO);
-
        dup2(fd, STDIN_FILENO);
        dup2(fd, STDOUT_FILENO);
        dup2(fd, STDERR_FILENO);