From 8552befa3086589876032d5e1ce5797ae2bb684b Mon Sep 17 00:00:00 2001
From: Fabio Estevam <fabio.estevam@freescale.com>
Date: Thu, 2 Oct 2014 22:25:22 -0300
Subject: [PATCH] iio: adc: vf610: Propagate the real error when
 platform_get_irq() fails

There is no need to pass a 'fake' return value when platform_get_irq() fails.

Propagate the real error instead.

While at it, only consider negative numbers returned by platform_get_irq()
as error.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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