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authorMichał Mirosław <mirq-linux@rere.qmqm.pl>2013-02-01 20:40:17 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-02-06 12:18:56 -0800
commit9f3b795a626ee79574595e06d1437fe0c7d51d29 (patch)
tree1952cb2ac880c0e66f291916815c2a36b4ceb300 /net/ieee802154/wpan-class.c
parent807be03cae191cb88e2f267adcd49aba785c658b (diff)
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 'net/ieee802154/wpan-class.c')
-rw-r--r--net/ieee802154/wpan-class.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/net/ieee802154/wpan-class.c b/net/ieee802154/wpan-class.c
index 1627ef2e8522..13571eae6bae 100644
--- a/net/ieee802154/wpan-class.c
+++ b/net/ieee802154/wpan-class.c
@@ -91,7 +91,7 @@ static struct class wpan_phy_class = {
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 @@ struct wpan_phy *wpan_phy_find(const char *str)
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;

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