From: Cristina Opriceana <cristina.opriceana@gmail.com>
Date: Mon, 3 Aug 2015 10:37:40 +0000 (+0300)
Subject: iio: industrialio-buffer: Fix iio_buffer_poll return value
X-Git-Tag: omap-for-v4.3/fixes-merge-window~44^2~139^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1bdc0293901cbea23c6dc29432e81919d4719844;p=pandora-kernel.git

iio: industrialio-buffer: Fix iio_buffer_poll return value

Change return value to 0 if no device is bound since
unsigned int cannot support negative error codes.

Fixes: f18e7a068 ("iio: Return -ENODEV for file operations if the
device has been unregistered")

Signed-off-by: Cristina Opriceana <cristina.opriceana@gmail.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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