From: Eli Billauer <eli.billauer@gmail.com>
Date: Sat, 21 Jun 2014 11:07:12 +0000 (+0300)
Subject: staging: xillybus: Use devm_ API for memory allocation and DMA mapping
X-Git-Tag: omap-for-v3.17/fixes-against-rc2~166^2~1494
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=525be905dc5db388487470be44734f6fb33a8fda;p=pandora-kernel.git

staging: xillybus: Use devm_ API for memory allocation and DMA mapping

Managed device resource API replaces code that reinvents it for memory
allocation, page allocation and DMA mapping.

devm_add_action() is used for unwinding DMA mappings, since there is no
devm_* API for dma_map_single(). A recent patch that introduces such API
was rejected, mainly on the grounds that it may cause an unnecessary waste of
resources.

Suggested-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Eli Billauer <eli.billauer@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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