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authorMichał Mirosław <mirq-linux@rere.qmqm.pl>2013-02-01 23:40:17 +0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-02-07 00:18:56 +0400
commit9f3b795a626ee79574595e06d1437fe0c7d51d29 (patch)
tree1952cb2ac880c0e66f291916815c2a36b4ceb300 /drivers/power
parent807be03cae191cb88e2f267adcd49aba785c658b (diff)
downloadlinux-9f3b795a626ee79574595e06d1437fe0c7d51d29.tar.xz
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>
Diffstat (limited to 'drivers/power')
-rw-r--r--drivers/power/power_supply_core.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/power/power_supply_core.c b/drivers/power/power_supply_core.c
index 8a7cfb3cc166..5deac432e2ae 100644
--- a/drivers/power/power_supply_core.c
+++ b/drivers/power/power_supply_core.c
@@ -141,7 +141,7 @@ int power_supply_set_battery_charged(struct power_supply *psy)
}
EXPORT_SYMBOL_GPL(power_supply_set_battery_charged);
-static int power_supply_match_device_by_name(struct device *dev, void *data)
+static int power_supply_match_device_by_name(struct device *dev, const void *data)
{
const char *name = data;
struct power_supply *psy = dev_get_drvdata(dev);
@@ -149,7 +149,7 @@ static int power_supply_match_device_by_name(struct device *dev, void *data)
return strcmp(psy->name, name) == 0;
}
-struct power_supply *power_supply_get_by_name(char *name)
+struct power_supply *power_supply_get_by_name(const char *name)
{
struct device *dev = class_find_device(power_supply_class, NULL, name,
power_supply_match_device_by_name);