the rest of drivers/*: annotate ->poll() instances

Signed-off-by: Al Viro <[email protected]>
diff --git a/drivers/scsi/mpt3sas/mpt3sas_ctl.c b/drivers/scsi/mpt3sas/mpt3sas_ctl.c
index b4c374b..537de1b 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_ctl.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_ctl.c
@@ -534,7 +534,7 @@ _ctl_fasync(int fd, struct file *filep, int mode)
  * @wait -
  *
  */
-static unsigned int
+static __poll_t
 _ctl_poll(struct file *filep, poll_table *wait)
 {
 	struct MPT3SAS_ADAPTER *ioc;