Re: [PATCH] drm/xe/tlb: Init range tilemask err to zero

["Thomas Hellström" <thomas.hellstrom@linux.intel.com>]

On Mon, 2026-03-16 at 16:20 +0000, Jonathan Cavitt wrote:
> Initialize err = 0 in xe_tlb_inval_range_tilemask_submit to prevent a
> possible uninitialized value return in the case where the tile_mask
> somehow doesn't match any available tile ids.
> 
> This targets a static analysis issue.
> 
> Signed-off-by: Jonathan Cavitt <jonathan.cavitt@intel.com>

IIRC Claude also complained about this but concluded itself it was
a false positive.

Either way, this makes the code easier to read

Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>

> ---
>  drivers/gpu/drm/xe/xe_tlb_inval.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/xe/xe_tlb_inval.c
> b/drivers/gpu/drm/xe/xe_tlb_inval.c
> index 10dcd4abb00f..bbd21d393062 100644
> --- a/drivers/gpu/drm/xe/xe_tlb_inval.c
> +++ b/drivers/gpu/drm/xe/xe_tlb_inval.c
> @@ -529,7 +529,7 @@ int xe_tlb_inval_range_tilemask_submit(struct
> xe_device *xe, u32 asid,
>  	struct xe_tile *tile;
>  	u32 fence_id = 0;
>  	u8 id;
> -	int err;
> +	int err = 0;
>  
>  	batch->num_fences = 0;
>  	if (!tile_mask)