From 97fed795e70d97fb89ebd8c3efc30b33aa4ac1fa Mon Sep 17 00:00:00 2001
From: Alexander Aring <alex.aring@gmail.com>
Date: Tue, 7 Oct 2014 10:38:32 +0200
Subject: [PATCH] at86rf230: fix enable_irq handling on async spi

Sometimes the async state function is call in an context where the spi
irq is diabled. This patch fix the handling to enable the irq when
spi_async failed in the async state change calling chain. We do this by
a context parameter irq_enable and evaluate this parameter when
spi_async failed instead of returning spi_async errno.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
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