From: NeilBrown <neilb@suse.de>
Date: Mon, 13 Aug 2012 02:32:58 +0000 (+1000)
Subject: usb: musb: omap2430: don't loop indefinitely in interrupt.
X-Git-Tag: omap-for-v3.7-rc1/fixes-cpufreq-signed~73^2~138^2~11
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=12a19b5f836c1a1b838e668f9aa804d017d8c58b;p=pandora-kernel.git

usb: musb: omap2430: don't loop indefinitely in interrupt.

When called during resume_irqs, omap2430_musb_set_vbus() is run with
interrupts disabled,  In that case 'jiffies' never changes so the loop
can loop forever.

So impose a maximum loop count and add an 'mdelay' to ensure we wait
a reasonable amount of time for bit to be cleared.

This fixes a hang on resume.

Signed-of-by: NeilBrown <neilb@suse.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---

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