From: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Date: Fri, 13 Nov 2015 14:20:24 +0000 (+0100)
Subject: net: fix __netdev_update_features return on ndo_set_features failure
X-Git-Tag: v3.2.75~66
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=bb62cdf556744e4e98b2c51abf10c3a108b4c373;p=pandora-kernel.git

net: fix __netdev_update_features return on ndo_set_features failure

commit 00ee5927177792a6e139d50b6b7564d35705556a upstream.

If ndo_set_features fails __netdev_update_features() will return -1 but
this is wrong because it is expected to return 0 if no features were
changed (see netdev_update_features()), which will cause a netdev
notifier to be called without any actual changes. Fix this by returning
0 if ndo_set_features fails.

Fixes: 6cb6a27c45ce ("net: Call netdev_features_change() from netdev_update_features()")
CC: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
[bwh: Backported to 3.2: adjust context]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

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