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xhci: Don't defer primary roothub registration if there is only one roothub

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The support for xHCI controllers with only one roothub, and the code
to defer primary roothub registation until second roothub got merged
to usb-next for 5.19 at the same time.

commit 873f323618 ("xhci: prepare for operation w/o shared hcd")
commit b7a4f9b5d0 ("xhci: Set HCD flag to defer primary roothub
registration")

These got merged in such a way that the flag to defer primary roothub
registration is set even for xHC controllers with just one roothub.

Fix this by setting the defer flag in a codepath taken only if we have
two roothubs

Fixes: 873f323618 ("xhci: prepare for operation w/o shared hcd")
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20220516094850.19788-2-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Mathias Nyman 2022-05-16 12:48:50 +03:00 committed by Greg Kroah-Hartman
parent 376d6b02cb
commit 1bd8bb7d2d
1 changed files with 2 additions and 2 deletions
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4
drivers/usb/host/xhci.c
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@ -696,8 +696,6 @@ int xhci_run(struct usb_hcd *hcd)
xhci_dbg_trace(xhci, trace_xhci_dbg_init,
"Finished %s for main hcd", __func__);
set_bit(HCD_FLAG_DEFER_RH_REGISTER, &hcd->flags);
xhci_create_dbc_dev(xhci);
xhci_debugfs_init(xhci);
@ -705,6 +703,8 @@ int xhci_run(struct usb_hcd *hcd)
if (xhci_has_one_roothub(xhci))
return xhci_run_finished(xhci);
set_bit(HCD_FLAG_DEFER_RH_REGISTER, &hcd->flags);
return 0;
}
EXPORT_SYMBOL_GPL(xhci_run);