usb: xhci: Allow usb_add/remove_hcd() to be called repeatedly
Don't set xhci->shared_hcd to NULL in xhci_stop() as we have
still not de-allocated it. It was resulting in a NULL pointer
de-reference if usb_add/remove_hcd() is called repeatedly.
We want repeated add/remove to work for the OTG use case.
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index 01118f7..8a7e319 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -660,12 +660,6 @@
spin_lock_irq(&xhci->lock);
xhci_halt(xhci);
-
- /* The shared_hcd is going to be deallocated shortly (the USB core only
- * calls this function when allocation fails in usb_add_hcd(), or
- * usb_remove_hcd() is called). So we need to unset xHCI's pointer.
- */
- xhci->shared_hcd = NULL;
spin_unlock_irq(&xhci->lock);
}