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| H A D | ehci-hcd.c | 9c6a9d7c8be40f58cf3faf0a4b8d9d33a21ca4f5 Wed May 15 07:29:20 UTC 2013 Kuo-Jung Su <dantesu@faraday-tech.com> usb: ehci: prevent bad PORTSC register access
1. The 'index' of ehci_submit_root() is not always > 0.
e.g.
While it gets invoked from usb_get_descriptor(),
the 'index' is always a '0'. (See ch.9 of USB2.0)
2. The PORTSC register is not always required, and thus it
should only report a port error when necessary.
It would cause a port scan failure if the ehci_submit_root()
always gets terminated by a port error.
Signed-off-by: Kuo-Jung Su <dantesu@faraday-tech.com>
CC: Marek Vasut <marex@denx.de>
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