staging:rts_pstor:Avoid "Bad target number" message when probing driver

Avoid "Bad LUN" and "Bad target number" message by setting the supported
max_lun and max_id for the scsi host

Signed-off-by: wwang <wei_wang@realsil.com.cn>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/staging/rts_pstor/rtsx.c b/drivers/staging/rts_pstor/rtsx.c
index a7feb3e..1dccd93 100644
--- a/drivers/staging/rts_pstor/rtsx.c
+++ b/drivers/staging/rts_pstor/rtsx.c
@@ -1000,6 +1000,11 @@
 
 	rtsx_init_chip(dev->chip);
 
+	/* set the supported max_lun and max_id for the scsi host
+	 * NOTE: the minimal value of max_id is 1 */
+	host->max_id = 1;
+	host->max_lun = dev->chip->max_lun;
+
 	/* Start up our control thread */
 	th = kthread_run(rtsx_control_thread, dev, CR_DRIVER_NAME);
 	if (IS_ERR(th)) {