V4L/DVB (11187): pvrusb2: Allow sub-devices to insert correctly

A sub-device won't successfully attach to our I2C adapter if its class
isn't set to zero.  Right the class is still set to
I2C_CLASS_TV_ANALOG in order to allow the old mechanism to still
work.  This change temporarily sets the class to zero during the
interval when the sub-device attaches.  This code will get removed
when the old i2c layer is finally removed from the driver.
Signed-off-by: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

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

@@ -2045,6 +2045,7 @@ static int pvr2_hdw_load_subdev(struct pvr2_hdw *hdw,
 	 * and every other place where I can find examples of this, the
 	 * "chipid" appears to just be the module name again.  So here we
 	 * just do the same thing. */
+	hdw->i2c_adap.class = 0;
 	if (i2ccnt == 1) {
 		pvr2_trace(PVR2_TRACE_INIT,
 			   "Module ID %u:"
@@ -2062,6 +2063,7 @@ static int pvr2_hdw_load_subdev(struct pvr2_hdw *hdw,
 						fname, fname,
 						i2caddr);
 	}
+	hdw->i2c_adap.class = I2C_CLASS_TV_ANALOG;
 
 	if (!sd) {
 		pvr2_trace(PVR2_TRACE_ERROR_LEGS,