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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 <[email protected]>
Acked-by: Grant Likely <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
This commit is contained in:
Michał Mirosław 2013-02-01 20:40:17 +01:00 • committed by Greg Kroah-Hartman
commit 9f3b795a62
19 changed files with 53 additions and 64 deletions
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6
drivers/rtc/interface.c
View file

@ -587,16 +587,16 @@ void rtc_update_irq(struct rtc_device *rtc,
}
EXPORT_SYMBOL_GPL(rtc_update_irq);
static int __rtc_match(struct device *dev, void *data)
static int __rtc_match(struct device *dev, const void *data)
{
char *name = (char *)data;
const char *name = data;
if (strcmp(dev_name(dev), name) == 0)
return 1;
return 0;
}
struct rtc_device *rtc_class_open(char *name)
struct rtc_device *rtc_class_open(const char *name)
{
struct device *dev;
struct rtc_device *rtc = NULL;