staging: unisys: visorbus: return EAGAIN when empty

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It really isn't an error when you call visorchannel_signalremove and
there isn't anything in the queue. Just means that the IOSP didn't
process anything since the last time you checked. Just inform the
caller that it is empty by returning -EAGAIN.

Signed-off-by: David Kershner <david.kershner@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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David Kershner 2016-11-21 12:15:52 -05:00 • committed by Greg Kroah-Hartman

parent 29b2780974

commit 5d295bc3e7

1 changed files with 2 additions and 1 deletions

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drivers/staging/unisys/visorbus/visorchannel.c

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