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/net/ieee802154/wpan-class.c b/net/ieee802154/wpan-class.c
index 1627ef2..13571ea 100644
--- a/net/ieee802154/wpan-class.c
+++ b/net/ieee802154/wpan-class.c
@@ -91,7 +91,7 @@
static DEFINE_MUTEX(wpan_phy_mutex);
static int wpan_phy_idx;
-static int wpan_phy_match(struct device *dev, void *data)
+static int wpan_phy_match(struct device *dev, const void *data)
{
return !strcmp(dev_name(dev), (const char *)data);
}
@@ -103,8 +103,7 @@
if (WARN_ON(!str))
return NULL;
- dev = class_find_device(&wpan_phy_class, NULL,
- (void *)str, wpan_phy_match);
+ dev = class_find_device(&wpan_phy_class, NULL, str, wpan_phy_match);
if (!dev)
return NULL;