From: Lukasz Majewski <lukma@denx.de>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH 1/3] gadget: f_thor: fix hang-up with ctrl-c
Date: Tue, 12 Jun 2018 13:21:13 +0200 [thread overview]
Message-ID: <20180612132113.76497df5@jawa> (raw)
In-Reply-To: <20180604065410epcas1p43c4bf88f56b8de9e8d5f55bcd4274518~04ojK7ip62173721737epcas1p4i@epcas1p4.samsung.com>
Hi Seung-Woo,
> After the commit 6aae84769a0b ("gadget: f_thor: Fix memory leaks of
> usb request and its buffer"), there is hang-up with ctrl-c in some
> udc. It is because req of out_ep is freed before out_ep is disabled.
> Fix hang-up with ctrl-c by disabling ep before free req of the ep.
>
> Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com>
> ---
> drivers/usb/gadget/f_thor.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/usb/gadget/f_thor.c b/drivers/usb/gadget/f_thor.c
> index 1aa6be4..8b3b19f 100644
> --- a/drivers/usb/gadget/f_thor.c
> +++ b/drivers/usb/gadget/f_thor.c
> @@ -877,14 +877,14 @@ static void thor_func_disable(struct
> usb_function *f)
> /* Avoid freeing memory when ep is still claimed */
> if (dev->in_ep->driver_data) {
> - free_ep_req(dev->in_ep, dev->in_req);
> usb_ep_disable(dev->in_ep);
> + free_ep_req(dev->in_ep, dev->in_req);
> dev->in_ep->driver_data = NULL;
> }
>
> if (dev->out_ep->driver_data) {
> - usb_ep_free_request(dev->out_ep, dev->out_req);
> usb_ep_disable(dev->out_ep);
> + usb_ep_free_request(dev->out_ep, dev->out_req);
> dev->out_ep->driver_data = NULL;
> }
>
Applied to u-boot-dfu tree.
Thanks for this fix.
Best regards,
Lukasz Majewski
--
DENX Software Engineering GmbH, Managing Director: Wolfgang Denk
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
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prev parent reply other threads:[~2018-06-12 11:21 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20180604065410epcas1p43c4bf88f56b8de9e8d5f55bcd4274518@epcas1p4.samsung.com>
2018-06-04 6:53 ` [U-Boot] [PATCH 1/3] gadget: f_thor: fix hang-up with ctrl-c Seung-Woo Kim
2018-06-12 11:21 ` Lukasz Majewski [this message]
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