From: Robert Baldyga <r.baldyga@samsung.com>
Date: Fri, 7 Aug 2015 10:26:47 +0000 (+0200)
Subject: dmaengine: fix balance of privatecnt inc/dec operations
X-Git-Tag: omap-for-v4.3/fixes-merge-window~82^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=05aa1a77dcf1b9f9c4fedf09a0a53e15d6b21738;p=pandora-kernel.git

dmaengine: fix balance of privatecnt inc/dec operations

This patch increments privatecnt value and set DMA_PRIVATE in device
caps in dma_request_slave_channel() function. This is needed to keep
privatecnt increment/decrement balance.

As function dma_release_channel() decrements privatecnt counter, we need
to increment it when channel is requested. Otherwise privatecnt drops
into negatives after few dma_release_channel() calls.

Reported-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
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