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-rw-r--r--drivers/usb/cdns3/cdnsp-ring.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/usb/cdns3/cdnsp-ring.c b/drivers/usb/cdns3/cdnsp-ring.c
index fd06cb85c4ea..757fdd918286 100644
--- a/drivers/usb/cdns3/cdnsp-ring.c
+++ b/drivers/usb/cdns3/cdnsp-ring.c
@@ -772,7 +772,9 @@ static int cdnsp_update_port_id(struct cdnsp_device *pdev, u32 port_id)
}
if (port_id != old_port) {
- cdnsp_disable_slot(pdev);
+ if (pdev->slot_id)
+ cdnsp_disable_slot(pdev);
+
pdev->active_port = port;
cdnsp_enable_slot(pdev);
}