Re: [PATCH] drm/i915/pmu: fix noderef.cocci warnings

[Ville Syrjälä]

On Fri, Jan 12, 2018 at 09:31:16PM +0800, kbuild test robot wrote:
> From: Fengguang Wu <fengguang.wu@xxxxxxxxx>
> 
> drivers/gpu/drm/i915/i915_pmu.c:795:34-40: ERROR: application of sizeof to pointer
> 
>  sizeof when applied to a pointer typed expression gives the size of
>  the pointer
> 
> Generated by: scripts/coccinelle/misc/noderef.cocci
> 
> Fixes: 109ec558370f ("drm/i915/pmu: Only enumerate available counters in sysfs")
> Signed-off-by: Fengguang Wu <fengguang.wu@xxxxxxxxx>
> ---
> 
>  i915_pmu.c |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> --- a/drivers/gpu/drm/i915/i915_pmu.c
> +++ b/drivers/gpu/drm/i915/i915_pmu.c
> @@ -792,7 +792,7 @@ create_event_attributes(struct drm_i915_
>  		goto err_alloc;
>  
>  	/* Max one pointer of each attribute type plus a termination entry. */
> -	attr = kzalloc((count * 2 + 1) * sizeof(attr), GFP_KERNEL);
> +	attr = kzalloc((count * 2 + 1) * sizeof(*attr), GFP_KERNEL);

kcalloc()?

>  	if (!attr)
>  		goto err_alloc;
>  
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-- 
Ville Syrjälä
Intel OTC