From: Sebastian Ott <sebott@linux.vnet.ibm.com>
Date: Tue, 18 Jun 2013 15:32:26 +0000 (+0200)
Subject: s390/dma: fix mapping_error detection
X-Git-Tag: v3.10~22^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=73e5a848426fae8e7f1f685389aa61d7a98e7c36;p=pandora-kernel.git

s390/dma: fix mapping_error detection

The map_page implementation of s390 returns DMA_ERROR_CODE in an error
situation. Correctly test if a mapping was erroneous (DMA_ERROR_CODE is
defined as ~0).

Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Acked-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---

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