greybus: connection: fix lookup race

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Fix longstanding race that could lead to a connection being destroyed
while processing an incoming message due to missing reference counting
when looking up the connection.

Add helpers to manipulate the connection kref.

Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

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Johan Hovold 2016-01-19 12:51:25 +01:00 • committed by Greg Kroah-Hartman

parent c6d64a19cd

commit 0e46fab7dd

1 changed files with 21 additions and 2 deletions

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drivers/staging/greybus/connection.c

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