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driver-core: constify data for class_find_device()

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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
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4
drivers/scsi/hosts.c
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@@ -468,10 +468,10 @@ void scsi_unregister(struct Scsi_Host *shost)
}
EXPORT_SYMBOL(scsi_unregister);
static int __scsi_host_match(struct device *dev, void *data)
static int __scsi_host_match(struct device *dev, const void *data)
{
struct Scsi_Host *p;
unsigned short *hostnum = (unsigned short *)data;
const unsigned short *hostnum = data;
p = class_to_shost(dev);
return p->host_no == *hostnum;