driver-core: constify data for class_find_device()
All in-kernel users of class_find_device() don't really need mutable
data for match callback.
In two places (kernel/power/suspend_test.c, drivers/scsi/osd/osd_uld.c)
this patch changes match callbacks to use const search data.
The const is propagated to rtc_class_open() and power_supply_get_by_name()
parameters.
Note that there's a dev reference leak in suspend_test.c that's not
touched in this patch.
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/include/linux/power_supply.h b/include/linux/power_supply.h
index 1f0ab90..86ecaa6 100644
--- a/include/linux/power_supply.h
+++ b/include/linux/power_supply.h
@@ -224,7 +224,7 @@
int use_for_apm;
};
-extern struct power_supply *power_supply_get_by_name(char *name);
+extern struct power_supply *power_supply_get_by_name(const char *name);
extern void power_supply_changed(struct power_supply *psy);
extern int power_supply_am_i_supplied(struct power_supply *psy);
extern int power_supply_set_battery_charged(struct power_supply *psy);