[PATCH] drm/meson: fix memory leak on ->hpd_notify callback

[Jani Nikula]

On Fri, 15 Sep 2023, Neil Armstrong <neil.armstrong at linaro.org> wrote:
> On 14/09/2023 15:10, Jani Nikula wrote:
>> The EDID returned by drm_bridge_get_edid() needs to be freed.
>> 
>> Fixes: 0af5e0b41110 ("drm/meson: encoder_hdmi: switch to bridge DRM_BRIDGE_ATTACH_NO_CONNECTOR")
>> Cc: Neil Armstrong <narmstrong at baylibre.com>
>> Cc: Sam Ravnborg <sam at ravnborg.org>
>> Cc: Martin Blumenstingl <martin.blumenstingl at googlemail.com>
>> Cc: Neil Armstrong <neil.armstrong at linaro.org>
>> Cc: Kevin Hilman <khilman at baylibre.com>
>> Cc: Jerome Brunet <jbrunet at baylibre.com>
>> Cc: dri-devel at lists.freedesktop.org
>> Cc: linux-amlogic at lists.infradead.org
>> Cc: linux-arm-kernel at lists.infradead.org
>> Cc: <stable at vger.kernel.org> # v5.17+
>> Signed-off-by: Jani Nikula <jani.nikula at intel.com>
>> 
>> ---
>> 
>> UNTESTED
>> ---
>>   drivers/gpu/drm/meson/meson_encoder_hdmi.c | 2 ++
>>   1 file changed, 2 insertions(+)
>> 
>> diff --git a/drivers/gpu/drm/meson/meson_encoder_hdmi.c b/drivers/gpu/drm/meson/meson_encoder_hdmi.c
>> index 9913971fa5d2..25ea76558690 100644
>> --- a/drivers/gpu/drm/meson/meson_encoder_hdmi.c
>> +++ b/drivers/gpu/drm/meson/meson_encoder_hdmi.c
>> @@ -334,6 +334,8 @@ static void meson_encoder_hdmi_hpd_notify(struct drm_bridge *bridge,
>>   			return;
>>   
>>   		cec_notifier_set_phys_addr_from_edid(encoder_hdmi->cec_notifier, edid);
>> +
>> +		kfree(edid);
>>   	} else
>>   		cec_notifier_phys_addr_invalidate(encoder_hdmi->cec_notifier);
>>   }
>
> Reviewed-by: Neil Armstrong <neil.armstrong at linaro.org>

Thanks. I don't seem to have a toolchain to get this to build... would
you mind applying this, please?

BR,
Jani.


-- 
Jani Nikula, Intel