From: Bart Van Assche <bvanassche@acm.org>
Date: Wed, 14 Aug 2013 15:35:29 +0000 (+0000)
Subject: libfc: Fix a race in fc_exch_timer_set_locked()
X-Git-Tag: v3.13-rc1~99^2^2~11
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b86788658be425a5454246a954721d9122d2b3d6;p=pandora-kernel.git

libfc: Fix a race in fc_exch_timer_set_locked()

It is allowed to pass a zero timeout value to fc_seq_exch_abort().
Avoid that this can cause the timeout function to drop the exchange
reference before it has been increased by fc_exch_timer_set_locked().
This patch fixes a crash when running FCoE target code with poisoning
enabled in the memory allocator.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Cc: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
---

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