Re: [PATCH] drm/i915/selftests: Fix uninitialized variable

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On Tue, 03 Mar 2020, Aditya Swarup <aditya.swarup@xxxxxxxxx> wrote:
> Static code analysis tool identified struct lrc_timestamp data as being
> uninitialized and then data.ce[] is being checked for NULL/negative
> value in the error path. Initializing data variable fixes the issue.
>
> Cc: Matt Roper <matthew.d.roper@xxxxxxxxx>
> Cc: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
> Signed-off-by: Aditya Swarup <aditya.swarup@xxxxxxxxx>
> ---
>  drivers/gpu/drm/i915/gt/selftest_lrc.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/i915/gt/selftest_lrc.c b/drivers/gpu/drm/i915/gt/selftest_lrc.c
> index ccf9debacd90..9b75b3c77a5b 100644
> --- a/drivers/gpu/drm/i915/gt/selftest_lrc.c
> +++ b/drivers/gpu/drm/i915/gt/selftest_lrc.c
> @@ -4725,7 +4725,7 @@ static int live_lrc_timestamp(void *arg)
>  {
>  	struct intel_gt *gt = arg;
>  	enum intel_engine_id id;
> -	struct lrc_timestamp data;
> +	struct lrc_timestamp data = { 0 };

{} is preferred over {0}.

BR,
Jani.

>  	const u32 poison[] = {
>  		0,
>  		S32_MAX,

-- 
Jani Nikula, Intel Open Source Graphics Center
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