[Intel-wired-lan] [PATCH v1 1/4] fm10k: fix possible null pointer deref after kcalloc

[Singh, Krishneil K]

-----Original Message-----
From: Intel-wired-lan [mailto:intel-wired-lan-bounces at lists.osuosl.org] On Behalf Of Jacob Keller
Sent: Thursday, April 7, 2016 8:21 AM
To: Intel Wired LAN <intel-wired-lan at lists.osuosl.org>
Subject: [Intel-wired-lan] [PATCH v1 1/4] fm10k: fix possible null pointer deref after kcalloc

When writing a new default redirection table, we needed to populate a new RSS table using ethtool_rxfh_indir_default. We populated this table into a region of memory allocated using kcalloc, but never checked this for NULL. Fix this by moving the default table generation into fm10k_write_reta. If this function is passed a table, use it. Otherwise, generate the default table using ethtool_rxfh_indir_default, 4 at at time.

Fixes: 0ea7fae44094 ("fm10k: use ethtool_rxfh_indir_default for default redirection table", 2016-02-16)
Signed-off-by: Jacob Keller <jacob.e.keller at intel.com>
---

Tested-by: Krishneil Singh <Krishneil.k.singh at intel.com>