V4L/DVB (11188): pvrusb2: Sub-device update must happen BEFORE state dirty bits are cleared

The sub-device update mechanism relies on various "dirty" bits in the
driver in order to know what pieces of state need to be propagated out
to the various sub-devices.  But that won't work if the dirty bits are
cleared before the update gets a chance to run.  This change ensures
that the update takes place before the dirty bits are cleared.
Signed-off-by: NMike Isely <isely@pobox.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/video/pvrusb2/pvrusb2-hdw.c

@@ -3238,15 +3238,15 @@ static int pvr2_hdw_commit_execute(struct pvr2_hdw *hdw)
 		}
 	}
 
+	/* Check and update state for all sub-devices. */
+	pvr2_subdev_update(hdw);
+
 	for (idx = 0; idx < hdw->control_cnt; idx++) {
 		cptr = hdw->controls + idx;
 		if (!cptr->info->clear_dirty) continue;
 		cptr->info->clear_dirty(cptr);
 	}
 
-	/* Check and update state for all sub-devices. */
-	pvr2_subdev_update(hdw);
-
 	/* Now execute i2c core update */
 	pvr2_i2c_core_sync(hdw);