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From: Pavel Machek <pavel@ucw.cz>
To: Tristram.Ha@microchip.com
Cc: Andrew Lunn <andrew@lunn.ch>,
	Florian Fainelli <f.fainelli@gmail.com>,
	Ruediger Schmitt <ruediger.schmitt@philips.com>,
	Arkadi Sharshevsky <arkadis@mellanox.com>,
	UNGLinuxDriver@microchip.com, netdev@vger.kernel.org
Subject: Re: [PATCH v3 net-next 03/11] net: dsa: microchip: Initialize mutex before use
Date: Wed, 24 Oct 2018 13:07:51 +0200	[thread overview]
Message-ID: <20181024110751.GA4864@amd> (raw)
In-Reply-To: <1540261575-1889-4-git-send-email-Tristram.Ha@microchip.com>

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On Mon 2018-10-22 19:26:07, Tristram.Ha@microchip.com wrote:
> From: Tristram Ha <Tristram.Ha@microchip.com>
> 
> Initialize mutex before use.
> 
> Signed-off-by: Tristram Ha <Tristram.Ha@microchip.com>

> ---
>  drivers/net/dsa/microchip/ksz_common.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/net/dsa/microchip/ksz_common.c b/drivers/net/dsa/microchip/ksz_common.c
> index 8c5853e..88e8d2a 100644
> --- a/drivers/net/dsa/microchip/ksz_common.c
> +++ b/drivers/net/dsa/microchip/ksz_common.c
> @@ -1118,7 +1118,6 @@ static int ksz_switch_init(struct ksz_device *dev)
>  {
>  	int i;
>  
> -	mutex_init(&dev->reg_mutex);
>  	mutex_init(&dev->stats_mutex);
>  	mutex_init(&dev->alu_mutex);
>  	mutex_init(&dev->vlan_mutex);
> @@ -1207,6 +1206,9 @@ int ksz_switch_register(struct ksz_device *dev)
>  	if (dev->pdata)
>  		dev->chip_id = dev->pdata->chip_id;
>  
> +	/* mutex is used in next function call. */
> +	mutex_init(&dev->reg_mutex);
> +
>  	if (ksz_switch_detect(dev))
>  		return -EINVAL;

Actually, would it make sense to move all mutex_init's there? No harm
in doing them sooner...
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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  parent reply	other threads:[~2018-10-24 19:35 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-10-23  2:26 [PATCH v3 net-next 00/11] net: dsa: microchip: Modify KSZ9477 DSA driver in preparation to add other KSZ switch drivers Tristram.Ha
2018-10-23  2:26 ` [PATCH v3 net-next 01/11] net: dsa: microchip: Replace license with GPL Tristram.Ha
2018-10-24 11:05   ` Pavel Machek
2018-10-23  2:26 ` [PATCH v3 net-next 03/11] net: dsa: microchip: Initialize mutex before use Tristram.Ha
2018-10-23 13:15   ` Andrew Lunn
2018-10-24 11:07   ` Pavel Machek [this message]
2018-10-23  2:26 ` [PATCH v3 net-next 04/11] net: dsa: microchip: Rename some functions with ksz9477 prefix Tristram.Ha
2018-10-23  2:26 ` [PATCH v3 net-next 05/11] net: dsa: microchip: Rename ksz_spi.c to ksz9477_spi.c Tristram.Ha
2018-10-23  2:26 ` [PATCH v3 net-next 06/11] net: dsa: microchip: Break KSZ9477 DSA driver into two files Tristram.Ha
2018-10-23  2:26 ` [PATCH v3 net-next 07/11] net: dsa: microchip: Prepare PHY for proper advertisement Tristram.Ha
2018-10-23  2:26 ` [PATCH v3 net-next 08/11] net: dsa: microchip: Rename ksz_9477_reg.h to ksz9477_reg.h Tristram.Ha
2018-10-23  2:26 ` [PATCH v3 net-next 09/11] net: dsa: microchip: Add MIB counter reading support Tristram.Ha
2018-10-23  2:26 ` [PATCH v3 net-next 10/11] net: dsa: microchip: Modify tag_ksz.c so that tail tag code can be used by other KSZ switch drivers Tristram.Ha
2018-10-23  2:26 ` [PATCH v3 net-next 11/11] net: dsa: microchip: Add switch offload forwarding support Tristram.Ha
2018-10-23  3:26 ` [PATCH v3 net-next 00/11] net: dsa: microchip: Modify KSZ9477 DSA driver in preparation to add other KSZ switch drivers David Miller

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