From: Lucas Stach <l.stach@pengutronix.de>
To: Andrey Smirnov <andrew.smirnov@gmail.com>, barebox@lists.infradead.org
Subject: Re: [PATCH] ARM: zii-commmon: Fix NULL pointer dereference in do_rdu1_switch_reset()
Date: Wed, 30 Oct 2019 18:08:27 +0100 [thread overview]
Message-ID: <c77a628a5dd966772a21e8a634e9aa9f3bc35662.camel@pengutronix.de> (raw)
In-Reply-To: <20191030165321.6779-1-andrew.smirnov@gmail.com>
On Mi, 2019-10-30 at 09:53 -0700, Andrey Smirnov wrote:
> We need to go to parent's private data to get a pointer to struct
> rave_sp. Fix that.
>
> Fixes: 493e2ee38f ("ARM: zii-common: add support for switch reset on RDU1")
> Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Urgh, I remember that I fixed the very same bug some time ago. Seems I
lost that fixup before upstreaming...
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
> ---
> arch/arm/boards/zii-common/switch-cmd.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/arm/boards/zii-common/switch-cmd.c b/arch/arm/boards/zii-common/switch-cmd.c
> index 30438053a1..2b9c34bfac 100644
> --- a/arch/arm/boards/zii-common/switch-cmd.c
> +++ b/arch/arm/boards/zii-common/switch-cmd.c
> @@ -42,7 +42,7 @@ static int do_rdu2_switch_reset(void)
> static int do_rdu1_switch_reset(void)
> {
> struct device_d *sp_dev = get_device_by_name("sp");
> - struct rave_sp *sp = sp_dev->priv;
> + struct rave_sp *sp = sp_dev->parent->priv;
> u8 cmd[] = {
> [0] = RAVE_SP_CMD_RESET_ETH_SWITCH,
> [1] = 0
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next prev parent reply other threads:[~2019-10-30 17:08 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-30 16:53 Andrey Smirnov
2019-10-30 17:08 ` Lucas Stach [this message]
2019-11-04 8:13 ` Sascha Hauer
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