netdev - Re: [PATCH net v1] net: dsa: qca: ar9331: fix sleeping function called from invalid context bug

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Fri, 4 Dec 2020 16:00:35 +0100
From:   Marc Kleine-Budde <mkl@...gutronix.de>
To:     Oleksij Rempel <o.rempel@...gutronix.de>,
        Andrew Lunn <andrew@...n.ch>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Vladimir Oltean <olteanv@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Russell King <linux@...linux.org.uk>
Cc:     linux-mips@...r.kernel.org, linux-kernel@...r.kernel.org,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        netdev@...r.kernel.org
Subject: Re: [PATCH net v1] net: dsa: qca: ar9331: fix sleeping function
 called from invalid context bug

On 12/4/20 3:57 PM, Oleksij Rempel wrote:
[...]


> +static void ar9331_sw_irq_bus_sync_unlock(struct irq_data *d)
>  {
>  	struct ar9331_sw_priv *priv = irq_data_get_irq_chip_data(d);
>  	struct regmap *regmap = priv->regmap;
>  	int ret;
>  
>  	ret = regmap_update_bits(regmap, AR9331_SW_REG_GINT_MASK,
> -				 AR9331_SW_GINT_PHY_INT,
> -				 AR9331_SW_GINT_PHY_INT);
> +				 AR9331_SW_GINT_PHY_INT, priv->irq_mask);
>  	if (ret)
> -		dev_err(priv->dev, "could not unmask IRQ\n");
> +		dev_err(priv->dev, "could not mask IRQ\n");

Technically this could be a mask or unmask operation. What about changing the
error message to: "faild to change IRQ mask"?

Marc

-- 
Pengutronix e.K.                 | Marc Kleine-Budde           |
Embedded Linux                   | https://www.pengutronix.de  |
Vertretung West/Dortmund         | Phone: +49-231-2826-924     |
Amtsgericht Hildesheim, HRA 2686 | Fax:   +49-5121-206917-5555 |



Download attachment "signature.asc" of type "application/pgp-signature" (489 bytes)