linux-kernel - Re: [PATCH] iwl3945: Fix oops at module load

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]

Message-ID: <1289254122.12056.86.camel@wwguy-huron>
Date:	Mon, 08 Nov 2010 14:08:42 -0800
From:	"Guy, Wey-Yi" <wey-yi.w.guy@...el.com>
To:	Andi Kleen <andi@...stfloor.org>
Cc:	"linux-wireless@...r.kernel.org" <linux-wireless@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Andi Kleen <ak@...ux.intel.com>,
	"Berg, Johannes" <johannes.berg@...el.com>
Subject: Re: [PATCH] iwl3945: Fix oops at module load

Hi Andi,

On Mon, 2010-11-08 at 13:54 -0800, Andi Kleen wrote:
> From: Andi Kleen <ak@...ux.intel.com>
> 
> On my laptop the iwl3945 driver oopsed at boot with 2.6.37-rc1
> in __dev_printk.
> 
> The problem is that for some reason it prints the sw scan
> warning, but does that before the pci device is initialized
> in the driver private structure. This leads to an oops
> in the warning print code.
> 
> Move the warning after the device has been initialized.
> 
> Cc: Johannes.berg@...el.com
> Signed-off-by: Andi Kleen <ak@...ux.intel.com>
> ---
>  drivers/net/wireless/iwlwifi/iwl3945-base.c |   11 +++++------
>  1 files changed, 5 insertions(+), 6 deletions(-)
> 
> diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c
> index 8f8c4b7..3910ec2 100644
> --- a/drivers/net/wireless/iwlwifi/iwl3945-base.c
> +++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c
> @@ -3995,6 +3995,11 @@ static int iwl3945_pci_probe(struct pci_dev *pdev, const struct pci_device_id *e
>  	priv->contexts[IWL_RXON_CTX_BSS].station_devtype = RXON_DEV_TYPE_ESS;
>  	priv->contexts[IWL_RXON_CTX_BSS].unused_devtype = RXON_DEV_TYPE_ESS;
>  
> +	IWL_DEBUG_INFO(priv, "*** LOAD DRIVER ***\n");
> +	priv->cfg = cfg;
> +	priv->pci_dev = pdev;
> +	priv->inta_mask = CSR_INI_SET_MASK;
> +
>  	/*
>  	 * Disabling hardware scan means that mac80211 will perform scans
>  	 * "the hard way", rather than using device's scan.
> @@ -4004,12 +4009,6 @@ static int iwl3945_pci_probe(struct pci_dev *pdev, const struct pci_device_id *e
>  		iwl3945_hw_ops.hw_scan = NULL;
>  	}
>  
> -
> -	IWL_DEBUG_INFO(priv, "*** LOAD DRIVER ***\n");
> -	priv->cfg = cfg;
> -	priv->pci_dev = pdev;
> -	priv->inta_mask = CSR_INI_SET_MASK;
> -
>  	if (iwl_alloc_traffic_mem(priv))
>  		IWL_ERR(priv, "Not enough memory to generate traffic log\n");
>  

I believe the fix already in
http://git.kernel.org/?p=linux/kernel/git/iwlwifi/iwlwifi-2.6.git;a=summary
commit#6e0922e0781884ff4eb3638f10a91b63b6120207

Thanks
Wey

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/