From: Matan Barak <matanb@mellanox.com>
Date: Thu, 11 Sep 2014 10:18:37 +0000 (+0300)
Subject: mlx4: Correct error flows in rereg_mr
X-Git-Tag: fixes-for-v3.18-merge-window~78^2^4~12
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4ff0acca7344c93fd9ed778b4c3ce16d95c594e4;p=pandora-kernel.git

mlx4: Correct error flows in rereg_mr

This patch addresses feedback from Sagi Grimberg on the rereg_mr
implementation of mlx4.  The following are fixed:

1. Set the correct pd_flags
2. Make sure we change the iova and size MR fields only after
   successful write and allocation of the MTTs.
3. Make the error checking more robust

Fixes: e630664c8383 ("mlx4_core: Add helper functions to support MR re-registration")
Signed-off-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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