From: Saurabh Sengar <redacted>
Date: Fri, 30 Oct 2015 19:46:44 +0530

as result of function rds_iw_flush_mr_pool is nowhere checked,
changing its return type from int to void.
also removing the unused variable rc as there is nothing to return

Signed-off-by: Saurabh Sengar <redacted>
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v2 :  modify patch description, as per the comments from Sergei Shtylyov

Applied, thanks.