watchdog: pika_wdt: add __ro_after_init to ident

The object ident of type watchdog_info structure is not
modified after getting initialized by pikawdt_init. Apart from getting
referenced in init it is also passed as an argument to the function
copy_to_user but this argument is of type const void *. Therefore add
__ro_after_init to its declaration.

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

diff --git a/drivers/watchdog/pika_wdt.c b/drivers/watchdog/pika_wdt.c
index 0cdfee2..e35cf5e 100644 (file)
--- a/drivers/watchdog/pika_wdt.c
+++ b/drivers/watchdog/pika_wdt.c
@@ -54,7 +54,7 @@ static struct {
        struct timer_list timer;        /* The timer that pings the watchdog */
 } pikawdt_private;
 
-static struct watchdog_info ident = {
+static struct watchdog_info ident __ro_after_init = {
        .identity       = DRV_NAME,
        .options        = WDIOF_CARDRESET |
                          WDIOF_SETTIMEOUT |