diff options
| author | Roderick Colenbrander <roderick.colenbrander@sony.com> | 2017-02-25 03:14:15 +0300 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2017-03-06 16:43:16 +0300 |
| commit | a687c5765b5ae19fe559e14615ddc87ebb46d409 (patch) | |
| tree | 437a1d7ac9f5981b20f9869349f9a455873040cc /drivers/hid/hid-sony.c | |
| parent | f2f10b7e722a75c6d75a7f7cd06b0eee3ae20f7c (diff) | |
| download | linux-a687c5765b5ae19fe559e14615ddc87ebb46d409.tar.xz | |
HID: sony: Fix input device leak when connecting a DS4 twice using USB/BT
When a user connects a DS4 twice using USB and BT, we reject the
second device connection after the setup work. We then perform
a cleanup, but during cleanup we are not removing the touchpad
device. This leads to leakage of an input device, which we would
never remove. It can likely result into a kernel oops as well
when the touchpad evdev node is accessed and the underlaying HID
device has been removed from the system.
[jkosina@suse.cz: added stable annotation]
Fixes: ac797b95f532 ("HID: sony: Make the DS4 touchpad a separate device")
Cc: stable@vger.kernel.org
Signed-off-by: Roderick Colenbrander <roderick.colenbrander@sony.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers/hid/hid-sony.c')
| -rw-r--r-- | drivers/hid/hid-sony.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/hid/hid-sony.c b/drivers/hid/hid-sony.c index f405b07d0381..740996f9bdd4 100644 --- a/drivers/hid/hid-sony.c +++ b/drivers/hid/hid-sony.c @@ -2632,6 +2632,8 @@ err_stop: sony_leds_remove(sc); if (sc->quirks & SONY_BATTERY_SUPPORT) sony_battery_remove(sc); + if (sc->touchpad) + sony_unregister_touchpad(sc); sony_cancel_work_sync(sc); kfree(sc->output_report_dmabuf); sony_remove_dev_list(sc); |