Re: [PATCH] elevator: remove unneeded kfree in error path of elevator_alloc

From: Jeff Moyer
Date: Thu Apr 23 2015 - 10:58:32 EST


Chao Yu <chao2.yu@xxxxxxxxxxx> writes:

> In elevator_alloc, if we fail to allocate memory for storing elevator
> queue, our eq pointer must be NULL, we do not need to release it in error
> path, so remove it.
>
> Signed-off-by: Chao Yu <chao2.yu@xxxxxxxxxxx>
> ---
> block/elevator.c | 1 -
> 1 file changed, 1 deletion(-)
>
> diff --git a/block/elevator.c b/block/elevator.c
> index 59794d0..d146a5e 100644
> --- a/block/elevator.c
> +++ b/block/elevator.c
> @@ -166,7 +166,6 @@ struct elevator_queue *elevator_alloc(struct request_queue *q,
>
> return eq;
> err:
> - kfree(eq);
> elevator_put(e);
> return NULL;
> }

Acked-by: Jeff Moyer <jmoyer@xxxxxxxxxx>
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