From: Takashi Iwai <tiwai@suse.de>
Date: Mon, 10 Nov 2014 10:50:21 +0000 (+0100)
Subject: net: ppp: Don't call bpf_prog_create() in ppp_lock
X-Git-Tag: omap-for-v3.19/fixes-for-merge-window~119^2~16
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5748eb8f8e989a9da1ac7c96dc73d68cbdedf7df;p=pandora-kernel.git

net: ppp: Don't call bpf_prog_create() in ppp_lock

In ppp_ioctl(), bpf_prog_create() is called inside ppp_lock, which
eventually calls vmalloc() and hits BUG_ON() in vmalloc.c.  This patch
works around the problem by moving the allocation outside the lock.

The bug was revealed by the recent change in net/core/filter.c, as it
allocates via vmalloc() instead of kmalloc() now.

Reported-and-tested-by: Stefan Seyfried <stefan.seyfried@googlemail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
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