From: Johannes Berg <johannes.berg@intel.com>
Date: Tue, 19 Mar 2013 19:26:57 +0000 (+0100)
Subject: cfg80211: fix wdev tracing crash
X-Git-Tag: v3.9-rc6~38^2~18^2^2~9^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ce1eadda6badef9e4e3460097ede674fca47383d;p=pandora-kernel.git

cfg80211: fix wdev tracing crash

Arend reported a crash in tracing if the driver returns an
ERR_PTR() value from the add_virtual_intf() callback. This
is due to the tracing then still attempting to dereference
the "pointer", fix this by using IS_ERR_OR_NULL().

Reported-by: Arend van Spriel <arend@broadcom.com>
Tested-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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