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authorGerd Hoffmann <kraxel@redhat.com>2015-10-21 09:44:22 +0200
committerGerd Hoffmann <kraxel@redhat.com>2015-11-03 11:55:51 +0100
commitcbf82fa01e6fd4ecb234b235b10ffce548154a95 (patch)
tree799f103f653f4fd097a9c2fab7017a67c67665bd /include/qemu/buffer.h
parent3d861a01093f8eedfac9889746ccafcfd32039b7 (diff)
downloadfocaccia-qemu-cbf82fa01e6fd4ecb234b235b10ffce548154a95.tar.gz
focaccia-qemu-cbf82fa01e6fd4ecb234b235b10ffce548154a95.zip
ehci: clear suspend bit on detach
When a device is detached, clear the suspend bit (PORTSC_SUSPEND)
in the port status register.

The specs are not *that* clear what is supposed to happen in case
a suspended device is unplugged.  But the enable bit (PORTSC_PED)
is cleared, and the specs mention setting suspend with enable being
unset is undefined behavior.  So clearing them both looks reasonable,
and it actually fixes the reported bug.

https://bugzilla.redhat.com/show_bug.cgi?id=1268879

Cc: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Message-id: 1445413462-18004-1-git-send-email-kraxel@redhat.com
Diffstat (limited to 'include/qemu/buffer.h')
0 files changed, 0 insertions, 0 deletions