From: Christian Lamparter <chunkeey@web.de>
Date: Mon, 30 Mar 2009 13:55:24 +0000 (+0200)
Subject: p54spi: fix locking warning in p54spi_op_tx
X-Git-Tag: v2.6.30-rc4~68^2~40^2~21
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=731c6531684250c46d732e369b25b003356f3947;p=pandora-kernel.git

p54spi: fix locking warning in p54spi_op_tx

This patch fixes the following waring:
> ------------[ cut here ]------------
>WARNING: at kernel/softirq.c:138 local_bh_enable+0x54/0xbc()
>Modules linked in: p54spi
>[<c0034ff8>] (dump_stack+0x0/0x14)
>[<c005b1a4>] (warn_on_slowpath+0x0/0x68)
>[<c00604c8>] (local_bh_enable+0x0/0xbc)
>[<bf000000>] (p54spi_op_tx+0x0/0x4c [p54spi])
>[<c01a4d34>] (p54_sta_unlock+0x0/0x78)

p54spi_op_tx needs to be called from different locking contexts.
Therefore we have to protect the linked list with irqsave spinlocks.

Reported-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Christian Lamparter <chunkeey@web.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---

Reading git-diff-tree failed