From: Michael Ellerman <michael@ellerman.id.au>
Date: Thu, 1 Sep 2005 01:29:07 +0000 (+1000)
Subject: [PATCH] iseries_veth: Only call dma_unmap_single() if dma_map_single() succeeded
X-Git-Tag: v2.6.14-rc1~1018^2~11
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=cbf9074cc30ca0eee19c9bd7304faf9f1beb1e76;p=pandora-kernel.git

[PATCH] iseries_veth: Only call dma_unmap_single() if dma_map_single() succeeded

The iseries_veth driver unconditionally calls dma_unmap_single() even
when the corresponding dma_map_single() may have failed.

Rework the code a bit to keep the return value from dma_unmap_single()
around, and then check if it's a dma_mapping_error() before we do
the dma_unmap_single().

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
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