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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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4
net/nfc/core.c
View file

@ -734,10 +734,10 @@ struct class nfc_class = {
};
EXPORT_SYMBOL(nfc_class);
static int match_idx(struct device *d, void *data)
static int match_idx(struct device *d, const void *data)
{
struct nfc_dev *dev = to_nfc_dev(d);
unsigned int *idx = data;
const unsigned int *idx = data;
return dev->idx == *idx;
}