From: Jan Glauber <jang@linux.vnet.ibm.com>
Date: Wed, 5 Dec 2012 13:43:25 +0000 (+0100)
Subject: s390/pci: no msleep in potential IRQ context
X-Git-Tag: omap-for-v3.8/fixes-for-merge-window-v4-signed~29^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c59b9f92653f102856ca7802af551788c143a3a3;p=pandora-kernel.git

s390/pci: no msleep in potential IRQ context

The PCI instructions may be used in IRQ context so scheduling is forbidden.
Use udelay and shorten the delay since we are now polling.

Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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