From: Vitaly Andrianov <vitalya@ti.com>
Date: Mon, 14 May 2012 17:49:56 +0000 (-0400)
Subject: ARM: dma-mapping: use PMD size for section unmap
X-Git-Tag: sz_154~91
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b22124a7a7d0b0b9c18e933d29f9b9eca26ce2d2;p=pandora-kernel.git

ARM: dma-mapping: use PMD size for section unmap

The dma_contiguous_remap() function clears existing section maps using
the wrong size (PGDIR_SIZE instead of PMD_SIZE).  This is a bug which
does not affect non-LPAE systems, where PGDIR_SIZE and PMD_SIZE are the same.
On LPAE systems, however, this bug causes the kernel to hang at this point.

This fix has been tested on both LPAE and non-LPAE kernel builds.

Signed-off-by: Vitaly Andrianov <vitalya@ti.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
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