From: Joerg Roedel <joerg.roedel@amd.com>
Date: Thu, 26 Jan 2012 17:25:37 +0000 (+0100)
Subject: iommu/msm: Fix error handling in msm_iommu_unmap()
X-Git-Tag: v3.2.6~23
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d7cd8fc525c9322ceb1f1de26d7c6201aef9d842;p=pandora-kernel.git

iommu/msm: Fix error handling in msm_iommu_unmap()

commit 05df1f3c2afaef5672627f2b7095f0d4c4dbc3a0 upstream.

Error handling in msm_iommu_unmap() is broken. On some error
conditions retval is set to a non-zero value which causes
the function to return 'len' at the end. This hides the
error from the user. Zero should be returned in those error
cases.

Cc: David Brown <davidb@codeaurora.org>
Cc: Stepan Moskovchenko <stepanm@codeaurora.org>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Acked-by: David Brown <davidb@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

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