Em Wed, 4 Apr 2018 16:26:22 +0300
Jaak Ristioja <jaak@xxxxxxxxxxx> escreveu:
> Hello, all!
>
> I experience the same issue with a Lenovo ThinkPad T440p (LENOVO
> 20AN006VMS/20AN006VMS, BIOS GLET90WW (2.44 ) 09/13/2017). I tried to
> bisect v4.15..v4.16 but failed.
Could you post the complete dmesg? I also need the .config used
to build the Kernel.
>From its call trace:
[ 43.177492] Call Trace:
[ 43.177498] ? devres_add+0x5f/0x70
[ 43.177502] rmi_f54_probe+0x437/0x470 [rmi_core]
[ 43.177505] rmi_function_probe+0x25/0x30 [rmi_core]
[ 43.177507] driver_probe_device+0x310/0x480
It looks that this was generated by an input driver
drivers/input/rmi4/rmi_f54.c, with could be doing something wrong when
registering at the media core.
>From the logs, the warn on is happening at
drivers/media/v4l2-core/v4l2-dev.c:945, e. g:
/* Should not happen since we thought this minor was free */
WARN_ON(video_device[vdev->minor] != NULL);
That was probably called here:
drivers/input/rmi4/rmi_f54.c: ret = video_register_device(&f54->vdev, VFL_TYPE_TOUCH, -1);
Thanks,
Mauro
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