From 9f3b795a626ee79574595e06d1437fe0c7d51d29 Mon Sep 17 00:00:00 2001 From: Michał Mirosław Date: Fri, 1 Feb 2013 20:40:17 +0100 Subject: driver-core: constify data for class_find_device() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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 Acked-by: Grant Likely Signed-off-by: Greg Kroah-Hartman --- net/ieee802154/wpan-class.c | 5 ++--- net/nfc/core.c | 4 ++-- 2 files changed, 4 insertions(+), 5 deletions(-) (limited to 'net') 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; diff --git a/net/nfc/core.c b/net/nfc/core.c index aa64ea441676..0f4a6de6f161 100644 --- a/net/nfc/core.c +++ b/net/nfc/core.c @@ -734,10 +734,10 @@ struct class nfc_class = { }; EXPORT_SYMBOL(nfc_class); -static int match_idx(struct device *d, void *data) +static int match_idx(struct device *d, const void *data) { struct nfc_dev *dev = to_nfc_dev(d); - unsigned int *idx = data; + const unsigned int *idx = data; return dev->idx == *idx; } -- cgit v1.2.3