From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Mon, 23 Feb 2015 20:22:44 +0000 (-0700)
Subject: staging: comedi: comedi_isadma: fix "stalled" detect in comedi_isadma_disable_on_sample()
X-Git-Tag: omap-for-v4.1/wl12xx-dt~47^2~2
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7e4f1e777814c6916b513b5dc90e030ee4e25f04;p=pandora-kernel.git

staging: comedi: comedi_isadma: fix "stalled" detect in comedi_isadma_disable_on_sample()

The "stalled" variable this function is used to detect if the DMA operation
is stalled while trying to disable DMA on a full comedi sample. The reset
of this variable should only occur when the remaining bytes of the DMA
transfer does not equal the remaining bytes from the last check.

Reported-by: coverity (CID 1271132)
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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