Re: [PATCH] rxe: fix xa_alloc_cycle() error return value check again

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On Thu, Jun 09, 2022 at 03:06:56PM +0800, Dongliang Mu wrote:
> From: Dongliang Mu <mudongliangabcd@xxxxxxxxx>
> 
> Currently rxe_alloc checks ret to indicate error, but 1 is also a valid
> return and just indicates that the allocation succeeded with a wrap.
> 
> Fix this by modifying the check to be < 0.
> 
> Signed-off-by: Dongliang Mu <mudongliangabcd@xxxxxxxxx>
> ---
>  drivers/infiniband/sw/rxe/rxe_pool.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

I applied same fix to rxe_alloc() and added Fixes line.

Thanks, applied.

> 
> diff --git a/drivers/infiniband/sw/rxe/rxe_pool.c b/drivers/infiniband/sw/rxe/rxe_pool.c
> index 1cc8e847ccff..e9f3bbd8d605 100644
> --- a/drivers/infiniband/sw/rxe/rxe_pool.c
> +++ b/drivers/infiniband/sw/rxe/rxe_pool.c
> @@ -167,7 +167,7 @@ int __rxe_add_to_pool(struct rxe_pool *pool, struct rxe_pool_elem *elem)
>  
>  	err = xa_alloc_cyclic(&pool->xa, &elem->index, elem, pool->limit,
>  			      &pool->next, GFP_KERNEL);
> -	if (err)
> +	if (err < 0)
>  		goto err_cnt;
>  
>  	return 0;
> -- 
> 2.25.1
> 



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