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Alex Elder 78496db012 greybus: clean up gb_connection_operation_recv() 
This patch does some cleanup of gb_connection_operation_recv().
    - Improve the header comments
    - Verify message is big enough for header before interpreting
      beginning of the message as a header
    - Verify at buffer creation time rather than receive time that
      no operation buffer is bigger than the maximum allowed.  We
      can then compare the incoming data size against the buffer.
    - When a response message arrives, record its status in the
      operation result, not in the buffer status.
    - Record a buffer overflow as an operation error.

Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>
History 2014-11-17 10:41:19 -08:00
drivers/staging/greybus greybus: clean up gb_connection_operation_recv() 2014-11-17 10:41:19 -08:00