A tasklet is not suitable for what the ds1374 driver does: neither sleeping
nor mutex operations are allowed in tasklets, and ds1374_set_tlet may do
both.

We can use a workqueue instead, where both sleeping and mutex operations
are allowed.
Signed-off-by: NJean Delvare <khali@linux-fr.org>
Acked-by: NRandy Vinson <rvinson@mvista.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>