[PATCH] gpu: drm_dp_cec: fix broken CEC adapter properties check

[Jens Schmidt]

[Resend to make the automation happy ... thanks for the hint.]

On 2025-01-29  10:51, Hans Verkuil wrote:

> Jens (aka Farblos), can you test this patch?

TL;DR: Your patch fixes the issue on my system, thanks.

Tested-by: Farblos <farblos at vodafonemail.de>

Details:

### build #13 - stock 6.12.10 kernel

[~]$ uname -a
Linux host01 6.12.10 #13 SMP PREEMPT_DYNAMIC Wed Jan 29 22:10:03 CET 2025 x86_64 GNU/Linux

[~]$ ls -ald /sys/devices/pci0000:00/0000:00:02.0/rc/rc0/input*
drwxr-xr-x 6 root root 0 Jan 29 22:17 /sys/devices/pci0000:00/0000:00:02.0/rc/rc0/input30

# you also get quite a lot of these without your patch ...
[~]$ journalctl --boot | grep -c 'kernel: Registered IR keymap rc-cec'
7

### build #14 - 6.12.10 with your patch

[~]$ uname -a
Linux host01 6.12.10 #14 SMP PREEMPT_DYNAMIC Wed Jan 29 22:24:47 CET 2025 x86_64 GNU/Linux

[~]$ ls -ald /sys/devices/pci0000:00/0000:00:02.0/rc/rc0/input*
drwxr-xr-x 6 root root 0 Jan 29 22:27 /sys/devices/pci0000:00/0000:00:02.0/rc/rc0/input11

[~]$ journalctl --boot | grep -c 'kernel: Registered IR keymap rc-cec'
1

... wait ... let screen saver kick in ... wait ...

[~]$ ls -ald /sys/devices/pci0000:00/0000:00:02.0/rc/rc0/input*
drwxr-xr-x 6 root root 0 Jan 29 22:27 /sys/devices/pci0000:00/0000:00:02.0/rc/rc0/input11

[~]$ journalctl --boot | grep -c 'kernel: Registered IR keymap rc-cec'
1