Re: [PATCH 2/5] drm/i915: fix error path in intel_setup_gmbus()

From: Jani Nikula
Date: Wed Feb 10 2016 - 03:56:43 EST


On Tue, 09 Feb 2016, Jani Nikula <jani.nikula@xxxxxxxxxxxxxxx> wrote:
> On Tue, 09 Feb 2016, Rasmus Villemoes <linux@xxxxxxxxxxxxxxxxxx> wrote:
>> This fails to undo the setup for pin==0; moreover, something
>> interesting happens if the setup failed already at pin==0.
>>
>> Signed-off-by: Rasmus Villemoes <linux@xxxxxxxxxxxxxxxxxx>
>> ---
>> drivers/gpu/drm/i915/intel_i2c.c | 2 +-
>> 1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/drivers/gpu/drm/i915/intel_i2c.c b/drivers/gpu/drm/i915/intel_i2c.c
>> index 25254b5c1ac5..deb8282c26d8 100644
>> --- a/drivers/gpu/drm/i915/intel_i2c.c
>> +++ b/drivers/gpu/drm/i915/intel_i2c.c
>> @@ -683,7 +683,7 @@ int intel_setup_gmbus(struct drm_device *dev)
>> return 0;
>>
>> err:
>> - while (--pin) {
>> + while (pin--) {
>> if (!intel_gmbus_is_valid_pin(dev_priv, pin))
>> continue;
>
> Reviewed-by: Jani Nikula <jani.nikula@xxxxxxxxx>
> Fixes: f899fc64cda8 ("drm/i915: use GMBUS to manage i2c links")
> Cc: stable@xxxxxxxxxxxxxxx

And picked up to drm-intel-next-queued, thanks for the patch.

BR,
Jani.


--
Jani Nikula, Intel Open Source Technology Center