Driver Core: Make PM operations a const pointer

They are not supposed to be modified by drivers, so make them const.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>

1 files changed, 5 insertions, 4 deletions

diff --git a/include/linux/device.h b/include/linux/device.h
index aebb81036db2..a28642975053 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -62,7 +62,7 @@ struct bus_type {
         int (*suspend)(struct device *dev, pm_message_t state);
         int (*resume)(struct device *dev);
 
-        struct dev_pm_ops *pm;
+        const struct dev_pm_ops *pm;
 
         struct bus_type_private *p;
 };
@@ -132,7 +132,7 @@ struct device_driver {
         int (*resume) (struct device *dev);
         struct attribute_group **groups;
 
-        struct dev_pm_ops *pm;
+        const struct dev_pm_ops *pm;
 
         struct driver_private *p;
 };
@@ -200,7 +200,8 @@ struct class {
         int (*suspend)(struct device *dev, pm_message_t state);
         int (*resume)(struct device *dev);
 
-        struct dev_pm_ops *pm;
+        const struct dev_pm_ops *pm;
+
         struct class_private *p;
 };
 
@@ -291,7 +292,7 @@ struct device_type {
         char *(*nodename)(struct device *dev);
         void (*release)(struct device *dev);
 
-        struct dev_pm_ops *pm;
+        const struct dev_pm_ops *pm;
 };
 
 /* interface for exporting device attributes */