xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

driver-core: constify data for class_find_device()

Browse Source 
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>
This commit is contained in:
Michał Mirosław
2013-02-01 20:40:17 +01:00
committed by Greg Kroah-Hartman
parent 807be03cae
commit 9f3b795a62
19 changed files with 53 additions and 64 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/base/core.c
View File

@@ -1617,9 +1617,9 @@ struct device *device_create(struct class *class, struct device *parent,
}
EXPORT_SYMBOL_GPL(device_create);
static int __match_devt(struct device *dev, void *data)
static int __match_devt(struct device *dev, const void *data)
{
dev_t *devt = data;
const dev_t *devt = data;
return dev->devt == *devt;
}