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Message-ID: <20230602080607-mutt-send-email-mst@kernel.org>
Date: Fri, 2 Jun 2023 08:06:15 -0400
From: "Michael S. Tsirkin" <mst@...hat.com>
To: Christophe JAILLET <christophe.jaillet@...adoo.fr>
Cc: Jason Wang <jasowang@...hat.com>,
Paolo Bonzini <pbonzini@...hat.com>,
Stefan Hajnoczi <stefanha@...hat.com>,
"James E.J. Bottomley" <jejb@...ux.ibm.com>,
"Martin K. Petersen" <martin.petersen@...cle.com>,
linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org,
virtualization@...ts.linux-foundation.org,
linux-scsi@...r.kernel.org
Subject: Re: [PATCH] scsi: virtio_scsi: Remove a useless function call
On Mon, May 29, 2023 at 09:35:08AM +0200, Christophe JAILLET wrote:
> 'inq_result' is known to be NULL. There is no point calling kfree().
>
> Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>
Acked-by: Michael S. Tsirkin <mst@...hat.com>
> ---
> drivers/scsi/virtio_scsi.c | 4 +---
> 1 file changed, 1 insertion(+), 3 deletions(-)
>
> diff --git a/drivers/scsi/virtio_scsi.c b/drivers/scsi/virtio_scsi.c
> index 58498da9869a..bd5633667d01 100644
> --- a/drivers/scsi/virtio_scsi.c
> +++ b/drivers/scsi/virtio_scsi.c
> @@ -338,10 +338,8 @@ static int virtscsi_rescan_hotunplug(struct virtio_scsi *vscsi)
> int result, inquiry_len, inq_result_len = 256;
> char *inq_result = kmalloc(inq_result_len, GFP_KERNEL);
>
> - if (!inq_result) {
> - kfree(inq_result);
> + if (!inq_result)
> return -ENOMEM;
> - }
>
> shost_for_each_device(sdev, shost) {
> inquiry_len = sdev->inquiry_len ? sdev->inquiry_len : 36;
> --
> 2.34.1
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