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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 /include/linux/device.h
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 'include/linux/device.h')
-rw-r--r--include/linux/device.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/include/linux/device.h b/include/linux/device.h
index 251f33b21ef9..a089676084a5 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -395,8 +395,8 @@ extern int class_for_each_device(struct class *class, struct device *start,
void *data,
int (*fn)(struct device *dev, void *data));
extern struct device *class_find_device(struct class *class,
- struct device *start, void *data,
- int (*match)(struct device *, void *));
+ struct device *start, const void *data,
+ int (*match)(struct device *, const void *));
struct class_attribute {
struct attribute attr;