staging: comedi: comedi_fops: remove BUG_ON() in comedi_dev_get_from_board_minor()

This function is only called by comedi_dev_get_from_minor() and the 'minor'
value will always be < COMEDI_NUM_BOARD_MINORS. Remove the unnecessary
BUG_ON().

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/comedi_fops.c b/drivers/staging/comedi/comedi_fops.c
index 2e69f5a..f7db91c 100644
--- a/drivers/staging/comedi/comedi_fops.c
+++ b/drivers/staging/comedi/comedi_fops.c
@@ -227,7 +227,6 @@
 {
 	struct comedi_device *dev;
 
-	BUG_ON(minor >= COMEDI_NUM_BOARD_MINORS);
 	mutex_lock(&comedi_board_minor_table_lock);
 	dev = comedi_dev_get(comedi_board_minor_table[minor]);
 	mutex_unlock(&comedi_board_minor_table_lock);