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)
committerAlexander Shishkin <alexander.shishkin@linux.intel.com>
Fri, 18 Nov 2016 14:54:39 +0000 (16:54 +0200)
commita0ebf519b8a2666438d999c62995618c710573e5
tree40ea96d5814491ac0f0e784c75bc69b24ecabf7d
parenta25f0944ba9b1d8a6813fd6f1a86f1bd59ac25a6
stm class: Fix device leak in open error path

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...")
Cc: stable@vger.kernel.org # v4.6+
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
drivers/hwtracing/stm/core.c