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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/base/class.c
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/base/class.c')
-rw-r--r--drivers/base/class.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/base/class.c b/drivers/base/class.c
index 03243d4002fd..3ce845471327 100644
--- a/drivers/base/class.c
+++ b/drivers/base/class.c
@@ -420,8 +420,8 @@ EXPORT_SYMBOL_GPL(class_for_each_device);
* code. There's no locking restriction.
*/
struct device *class_find_device(struct class *class, struct device *start,
- void *data,
- int (*match)(struct device *, void *))
+ const void *data,
+ int (*match)(struct device *, const void *))
{
struct class_dev_iter iter;
struct device *dev;