From: James Hogan <james.hogan@imgtec.com>
Date: Mon, 10 Feb 2014 21:31:56 +0000 (-0300)
Subject: [media] rc-main: store_filter: pass errors to userland
X-Git-Tag: v3.15-rc1~85^2~88
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7b802ce7e8c67510389fdbbe29edd87a75df3a93;p=pandora-kernel.git

[media] rc-main: store_filter: pass errors to userland

Propagate errors returned by drivers from the s_filter callback back to
userland when updating scancode filters. This allows userland to see
when the filter couldn't be updated, usually because it's not a valid
filter for the hardware.

Previously the filter was being updated conditionally on success of
s_filter, but the write always reported success back to userland.

Reported-by: Antti Seppälä <a.seppala@gmail.com>
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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