linux-kernel - RE: [PATCH v2] infiniband: i40iw: fix potential NULL pointer dereferences

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Date:   Mon, 18 Mar 2019 13:56:34 +0000
From:   "Saleem, Shiraz" <shiraz.saleem@...el.com>
To:     Kangjie Lu <kjlu@....edu>
CC:     "Latif, Faisal" <faisal.latif@...el.com>,
        Doug Ledford <dledford@...hat.com>,
        Jason Gunthorpe <jgg@...pe.ca>,
        "linux-rdma@...r.kernel.org" <linux-rdma@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH v2] infiniband: i40iw: fix potential NULL pointer
 dereferences

>Subject: [PATCH v2] infiniband: i40iw: fix potential NULL pointer dereferences

Something like "RDMA/i40iw: Handle workqueue allocation failure" is a more appropriate subject line. 
>
>alloc_ordered_workqueue may fail and return NULL.
>The fix captures the failure and handles it properly to avoid potential NULL pointer
>dereferences.
>
>Signed-off-by: Kangjie Lu <kjlu@....edu>
>---
>V2: add return value to capture the error code
>---
> drivers/infiniband/hw/i40iw/i40iw.h      |  2 +-
> drivers/infiniband/hw/i40iw/i40iw_cm.c   | 19 ++++++++++++++++---
> drivers/infiniband/hw/i40iw/i40iw_main.c |  5 ++++-
> 3 files changed, 21 insertions(+), 5 deletions(-)
>
The patch itself looks ok to me now. Thanks!

Shiraz