From: Bart Van Assche <bvanassche@acm.org>
Date: Tue, 14 Aug 2012 13:18:53 +0000 (+0000)
Subject: IB/srp: Fix a race condition
X-Git-Tag: v3.2.29~62
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fc7834af1b974a2578440d1210a991eedd2151b1;p=pandora-kernel.git

IB/srp: Fix a race condition

commit 220329916c72ee3d54ae7262b215a050f04a18fc upstream.

Avoid a crash caused by the scmnd->scsi_done(scmnd) call in
srp_process_rsp() being invoked with scsi_done == NULL.  This can
happen if a reply is received during or after a command abort.

Reported-by: Joseph Glanville <joseph.glanville@orionvm.com.au>
Reference: http://marc.info/?l=linux-rdma&m=134314367801595
Acked-by: David Dillow <dillowda@ornl.gov>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

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