xhci: Don't require a valid get_quirks() function pointer during xhci setup

Not all platforms drivers need to set up custom quirks during the xhci
generic setup. Allow them to pass NULL as the function pointer when
calling xhci_gen_setup()

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Message-ID: <20230602144009.1225632-4-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 3a13e2453203ccf3d2a37616663bf59821093c64..176969bf2d5c33710795d4bda09ca9cf6fb9f61a 100644 (file)
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -5181,7 +5181,8 @@ int xhci_gen_setup(struct usb_hcd *hcd, xhci_get_quirks_t get_quirks)
 
        xhci->quirks |= quirks;
 
-       get_quirks(dev, xhci);
+       if (get_quirks)
+               get_quirks(dev, xhci);
 
        /* In xhci controllers which follow xhci 1.0 spec gives a spurious
         * success event after a short transfer. This quirk will ignore such