of: add const to struct *of_device_id.data

Drivers should never need to modify the data of a device id. So it can
be const which in turn allows more consts in the driver.

Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>

1 files changed, 1 insertions, 1 deletions

diff --git a/include/linux/mod_devicetable.h b/include/linux/mod_devicetable.h
index 6955045199b0..78874b361120 100644
--- a/include/linux/mod_devicetable.h
+++ b/include/linux/mod_devicetable.h
@@ -232,7 +232,7 @@ struct of_device_id
         char    type[32];
         char    compatible[128];
 #ifdef __KERNEL__
-        void    *data;
+        const void *data;
 #else
         kernel_ulong_t data;
 #endif