linux-kernel - Re: [PATCH wireless-next] iwlwifi: iwlagn_request_scan: Fix check for NULL priv->scan

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Date:	Thu, 06 Dec 2012 22:41:54 +0100
From:	Johannes Berg <johannes@...solutions.net>
To:	Tim Gardner <tim.gardner@...onical.com>
Cc:	linux-kernel@...r.kernel.org, Wey-Yi Guy <wey-yi.w.guy@...el.com>,
	Intel Linux Wireless <ilw@...ux.intel.com>,
	"John W. Linville" <linville@...driver.com>,
	Emmanuel Grumbach <emmanuel.grumbach@...el.com>,
	Don Fry <donald.h.fry@...el.com>,
	linux-wireless@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: [PATCH wireless-next] iwlwifi: iwlagn_request_scan: Fix check
 for NULL priv->scan_request


> --- a/drivers/net/wireless/iwlwifi/dvm/scan.c
> +++ b/drivers/net/wireless/iwlwifi/dvm/scan.c
> @@ -673,8 +673,9 @@ static int iwlagn_request_scan(struct iwl_priv *priv, struct ieee80211_vif *vif)
>  	const u8 *ssid = NULL;
>  	u8 ssid_len = 0;
>  
> -	if (WARN_ON_ONCE(priv->scan_request &&
> -			 priv->scan_request->n_channels > MAX_SCAN_CHANNEL))
> +	if (WARN_ON(priv->scan_type == IWL_SCAN_NORMAL &&
> +		(!priv->scan_request ||
> +		priv->scan_request->n_channels > MAX_SCAN_CHANNEL)))
>  		return -EINVAL;

I'll pick it up if you fix the indentation :P

johannes

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