greybus: protocol: warn on bad deregistration

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A protocol should be deregistered exactly once when the protocol module
is being unloaded. This means that protocol deregister will never be
called with active users as we take a module reference when looking up a
protocol.

Remove comment suggesting that we could one day forcefully stop a user
of a protocol, and issue a big warning if a protocol is deregistered
more than once or at some other time than during module unload (e.g.
with active users).

Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

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Johan Hovold 2015-10-13 19:10:24 +02:00 • committed by Greg Kroah-Hartman

parent 0b1118a9ef

commit 78033844da

2 changed files with 9 additions and 21 deletions

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28

drivers/staging/greybus/protocol.c

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2

drivers/staging/greybus/protocol.h

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