From: Peter Wu <peter@lekensteyn.nl>
Date: Thu, 11 Dec 2014 12:51:20 +0000 (+0100)
Subject: HID: logitech-hidpp: disable io in probe error path
X-Git-Tag: omap-for-v3.20/drop-legacy-3517~109^2^5
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f486d9dbcc8bc2fc14aac0bf6e24637485107496;p=pandora-kernel.git

HID: logitech-hidpp: disable io in probe error path

Balance a hid_device_io_start() call with hid_device_io_stop() in the
error path. This avoids processing of HID reports when the probe fails
which possibly leads to invalid memory access in hid_device_probe() as
report_enum->report_id_hash might already be freed via
hid_close_report().

hid_set_drvdata() is called before wtp_allocate, be consistent and clear
drvdata too on the error path of wtp_allocate.

Signed-off-by: Peter Wu <peter@lekensteyn.nl>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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