From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Fri, 25 Apr 2014 11:59:00 +0000 (+0100)
Subject: mmc: sdhci-esdhc-imx: avoid DMA to kernel stack
X-Git-Tag: omap-for-v3.16/fixes-against-rc1~65^2~34
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9d2fc80fb15b99736ecd1895934ce4512e76fa3f;p=pandora-kernel.git

mmc: sdhci-esdhc-imx: avoid DMA to kernel stack

sdhci-esdhc-imx tries to DMA to the kernel stack when tuning the
interface, which causes dma-debug to complain.  Fix this by kmallocing
a buffer to hold the received tuning pattern.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Tested-by: Markus Pargmann <mpa@pengutronix.de>
Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Chris Ball <chris@printf.net>
---

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