macintosh/mediabay: add a const qualifier

This prepares *of_device_id.data becoming const. Without this change
the following warning would occur:

	drivers/macintosh/mediabay.c: In function 'media_bay_attach':
	drivers/macintosh/mediabay.c:589:11: warning: assignment discards 'const' qualifier from pointer target type [enabled by default]

Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/macintosh/mediabay.c b/drivers/macintosh/mediabay.c
index 831d7517c759..54bf584f9601 100644
--- a/drivers/macintosh/mediabay.c
+++ b/drivers/macintosh/mediabay.c
@@ -63,7 +63,7 @@ struct media_bay_info {
         int                             value_count;
         int                             timer;
         struct macio_dev                *mdev;
-        struct mb_ops*                  ops;
+        const struct mb_ops*            ops;
         int                             index;
         int                             cached_gpio;
         int                             sleeping;