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authorHans de Goede <hdegoede@redhat.com>2012-04-03 14:21:47 +0200
committerGerd Hoffmann <kraxel@redhat.com>2012-04-26 12:21:15 +0200
commit8a771f77e2abfb81f1f33a986810c16ecae54ca7 (patch)
treebb6499c89aea22cfed0809add4b6b43e34d9ed7a /hw/usb/dev-storage.c
parent0cc6a0f19e3de830eaa898ad31c0bc607470b8cb (diff)
downloadqemu-8a771f77e2abfb81f1f33a986810c16ecae54ca7.tar.gz
usb-ehci: Ensure frindex writes leave a valid frindex value
frindex is a 14 bits counter, so bits 31-14 should always be 0, and after the commit titled "usb-ehci: frindex always is a 14 bits counter" we rely on frindex always being a multiple of 8. I've not seen this in practice, but theoretically a guest can write a value >= 0x4000 or a value which is not a multiple of 8 value to frindex, this patch ensures that things will still work when that happens. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Diffstat (limited to 'hw/usb/dev-storage.c')
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