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usb: renesas_usbhs: modify spinlock method
authorKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Thu, 21 Apr 2011 05:10:08 +0000 (14:10 +0900)
committerGreg Kroah-Hartman <gregkh@suse.de>
Sat, 30 Apr 2011 00:24:32 +0000 (17:24 -0700)
Current renesas_usbhs driver was using spin_trylock to avoid
dead lock / nest lock.
But acording to CONFIG_DEBUG_SPINLOCK, it is BUG under UP environment.
This patch add usbhsg_trylock to avoid this issue.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

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