From: Kevin Hilman <khilman@mvista.com>
Date: Wed, 20 Feb 2008 17:27:10 +0000 (-0800)
Subject: ARM: OMAP: MUSB: prevent recursive spinlock in TX path
X-Git-Tag: v2.6.25-omap1~153
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4bbf5ebf1fdedd08d84c80a8ba011fd353d8fc5b;p=pandora-kernel.git

ARM: OMAP: MUSB: prevent recursive spinlock in TX path

If a hard IRQ occurs during the soft IRQ TX processing, a recursive
spinlock BUG can occur.

Prevent this by interrupt-off locking around usb_hcd_link_urb_to_ep()

Found while testing bluetooth A2DP audio over USB.

Signed-off-by: Kevin Hilman <khilman@mvista.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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