staging: comedi: serial2002: usleep_range is preferred over udelay

Fix checkpatch issue: "CHECK: usleep_range is preferred over udelay;
see Documentation/timers/timers-howto.txt". Replace the udelay() with
usleep_range() with a reasonable upper limit.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/comedi/drivers/serial2002.c b/drivers/staging/comedi/drivers/serial2002.c
index 186ddd4..c6f9855 100644 (file)
--- a/drivers/staging/comedi/drivers/serial2002.c
+++ b/drivers/staging/comedi/drivers/serial2002.c
@@ -175,7 +175,7 @@ static int serial2002_tty_read(struct file *f, int timeout)
                                        result = ch;
                                        break;
                                }
-                               udelay(100);
+                               usleep_range(100, 1000);
                        }
                }
                set_fs(oldfs);