David Brownell 0bcfeb3ec9
USB: ehci: fix some ehci hangs and crashes ...
I noticed that the "Refactor "if (handshake()) state = HC_STATE_HALT"
patch from earlier this year perpetuated a potential problem: it can
mark the controller as halted when it's still running (but not acting
as, perhaps wrongly, expected).
That caused some hangs and crashes, rather than more polite failure
modes of a truly halted controller. This patch forces a true halt,
and emits a (previously missing) diagnostic.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net >
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de >
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0bcfeb3ec9