From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Date: Tue, 25 Jul 2017 21:58:50 +0000 (+0200)
Subject: USB: hcd: Mark secondary HCD as dead if the primary one died
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=621206936ccee3b37f3e4a7d061ea8da54097fe5;p=pandora-kernel.git

USB: hcd: Mark secondary HCD as dead if the primary one died

commit cd5a6a4fdaba150089af2afc220eae0fef74878a upstream.

Make usb_hc_died() clear the HCD_FLAG_RH_RUNNING flag for the shared
HCD and set HCD_FLAG_DEAD for it, in analogy with what is done for
the primary one.

Among other thigs, this prevents check_root_hub_suspended() from
returning -EBUSY for dead HCDs which helps to work around system
suspend issues in some situations.

This actually fixes occasional suspend failures on one of my test
machines.

Suggested-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

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