[PATCH v2] drm/i915/hwmon: Fix locking inversion in sysfs getter

[Andi Shyti]

Hi Janusz,

On Mon, Mar 11, 2024 at 09:34:58PM +0100, Janusz Krzysztofik wrote:
> In i915 hwmon sysfs getter path we now take a hwmon_lock, then acquire an
> rpm wakeref.  That results in lock inversion:
> 
> <4> [197.079335] ======================================================
> <4> [197.085473] WARNING: possible circular locking dependency detected
> <4> [197.091611] 6.8.0-rc7-Patchwork_129026v7-gc4dc92fb1152+ #1 Not tainted

...

> Fixes: c41b8bdcc297 ("drm/i915/hwmon: Show device level energy usage")
> Signed-off-by: Janusz Krzysztofik <janusz.krzysztofik at linux.intel.com>
> Cc: Rodrigo Vivi <rodrigo.vivi at intel.com>
> Cc: Guenter Roeck <linux at roeck-us.net>
> Cc: <stable at vger.kernel.org> # v6.2+

With the "Fixes:" tag changed and the stable version updated,
pushed to drm-intel-next.

Thanks,
Andi