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stm class: Fix device leak in open error path
authorJohan Hovold <johan@kernel.org>
Fri, 18 Nov 2016 12:17:31 +0000 (14:17 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Mon, 9 Jan 2017 07:32:21 +0000 (08:32 +0100)
commit2d2914349286d29e57b6536c01251c1332a8e784
tree9de45cd8e42589a3589e484c103812d0906bad60
parentfbb28e76454fd7b9c59e5e35702982ee6d0dae8b
stm class: Fix device leak in open error path

commit a0ebf519b8a2666438d999c62995618c710573e5 upstream.

Make sure to drop the reference taken by class_find_device() also on
allocation errors in open().

Signed-off-by: Johan Hovold <johan@kernel.org>
Fixes: 7bd1d4093c2f ("stm class: Introduce an abstraction for...")
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/hwtracing/stm/core.c