[PATCH] drm/i915: fix application of sizeof to pointer

Jani Nikula jani.nikula at linux.intel.com
Mon Jul 31 09:56:05 UTC 2023


On Thu, 20 Jul 2023, sunran001 at 208suo.com wrote:
> The coccinelle check report:
> ./drivers/scsi/csiostor/csio_mb.c:1554:46-52: ERROR: application
> of sizeof to pointer

Please don't just assume coccinelle is right, and send "fixes" based on
the cocci reports alone. You need to read and understand the code you're
changing.


BR,
Jani.

>
> Signed-off-by: Ran Sun <sunran001 at 208suo.com>
> ---
>   drivers/gpu/drm/i915/i915_syncmap.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/i915/i915_syncmap.c 
> b/drivers/gpu/drm/i915/i915_syncmap.c
> index 60404dbb2e9f..4eeaf12be72d 100644
> --- a/drivers/gpu/drm/i915/i915_syncmap.c
> +++ b/drivers/gpu/drm/i915/i915_syncmap.c
> @@ -282,7 +282,7 @@ static noinline int __sync_set(struct i915_syncmap 
> **root, u64 id, u32 seqno)
>   			unsigned int above;
>
>   			/* Insert a join above the current layer */
> -			next = kzalloc(sizeof(*next) + KSYNCMAP * sizeof(next),
> +			next = kzalloc(sizeof(*next) + KSYNCMAP * sizeof(*next),
>   				       GFP_KERNEL);
>   			if (unlikely(!next))
>   				return -ENOMEM;

-- 
Jani Nikula, Intel Open Source Graphics Center


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