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| author | Oliver Neukum <oneukum@suse.com> | 2019-08-01 18:40:26 +0200 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2019-08-01 19:55:20 +0200 |
| commit | b55d996f057bf2e7ba9422a80b5e17e99860cb0b (patch) | |
| tree | f50fa96dd0577f8fefac7db47ee77f5eeaea1d8b /drivers/input/touchscreen/usbtouchscreen.c | |
| parent | Input: applespi - add dependency on LEDS_CLASS (diff) | |
| download | linux-b55d996f057bf2e7ba9422a80b5e17e99860cb0b.tar.xz linux-b55d996f057bf2e7ba9422a80b5e17e99860cb0b.zip | |
Input: usbtouchscreen - initialize PM mutex before using it
Mutexes shall be initialized before they are used.
Fixes: 12e510dbc57b2 ("Input: usbtouchscreen - fix deadlock in autosuspend")
Reported-by: syzbot+199ea16c7f26418b4365@syzkaller.appspotmail.com
Signed-off-by: Oliver Neukum <oneukum@suse.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'drivers/input/touchscreen/usbtouchscreen.c')
| -rw-r--r-- | drivers/input/touchscreen/usbtouchscreen.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/input/touchscreen/usbtouchscreen.c b/drivers/input/touchscreen/usbtouchscreen.c index a2cec6cacf57..16d70201de4a 100644 --- a/drivers/input/touchscreen/usbtouchscreen.c +++ b/drivers/input/touchscreen/usbtouchscreen.c @@ -1659,6 +1659,8 @@ static int usbtouch_probe(struct usb_interface *intf, if (!usbtouch || !input_dev) goto out_free; + mutex_init(&usbtouch->pm_mutex); + type = &usbtouch_dev_info[id->driver_info]; usbtouch->type = type; if (!type->process_pkt) |