From 6eb484fe92e2f67f888dc87e97bfd938c0f7404e Mon Sep 17 00:00:00 2001
From: Haavard Skinnemoen <hskinnemoen@atmel.com>
Date: Thu, 1 Feb 2007 16:26:03 +0100
Subject: [PATCH] [AVR32] Implement dma_mapping_error()

dma_map_single() never fails, so dma_mapping_error() simply returns 0.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
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