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From: Kalle Valo <kvalo@qca.qualcomm.com>
To: Bob Copeland <me@bobcopeland.com>
Cc: <linux-wireless@vger.kernel.org>,
	Bob Copeland <me@bobcopeland.com>, <ath10k@lists.infradead.org>
Subject: Re: ath10k: fix potential null dereference bugs
Date: Thu, 30 Jun 2016 12:54:40 +0200	[thread overview]
Message-ID: <fa78b1942cf2454898cc33b31a253b81@euamsexm01a.eu.qualcomm.com> (raw)
In-Reply-To: <1465563164-783-1-git-send-email-me@bobcopeland.com>

Bob Copeland <me@bobcopeland.com> wrote:
> Smatch warns about a number of cases in ath10k where a pointer is
> null-checked after it has already been dereferenced, in code involving
> ath10k private virtual interface pointers.
> 
> Fix these by making the dereference happen later.
> 
> Addresses the following smatch warnings:
> 
> drivers/net/wireless/ath/ath10k/mac.c:3651 ath10k_mac_txq_init() warn: variable dereferenced before check 'txq' (see line 3649)
> drivers/net/wireless/ath/ath10k/mac.c:3664 ath10k_mac_txq_unref() warn: variable dereferenced before check 'txq' (see line 3659)
> drivers/net/wireless/ath/ath10k/htt_tx.c:70 __ath10k_htt_tx_txq_recalc() warn: variable dereferenced before check 'txq->sta' (see line 52)
> drivers/net/wireless/ath/ath10k/htt_tx.c:740 ath10k_htt_tx_get_vdev_id() warn: variable dereferenced before check 'cb->vif' (see line 736)
> drivers/net/wireless/ath/ath10k/txrx.c:86 ath10k_txrx_tx_unref() warn: variable dereferenced before check 'txq' (see line 84)
> drivers/net/wireless/ath/ath10k/wmi.c:1837 ath10k_wmi_op_gen_mgmt_tx() warn: variable dereferenced before check 'cb->vif' (see line 1825)
> 
> Signed-off-by: Bob Copeland <me@bobcopeland.com>

Thanks, 1 patch applied to ath-next branch of ath.git:

a66cd733a729 ath10k: fix potential null dereference bugs

-- 
Sent by pwcli
https://patchwork.kernel.org/patch/9169669/


WARNING: multiple messages have this Message-ID (diff)
From: Kalle Valo <kvalo@qca.qualcomm.com>
To: Bob Copeland <me@bobcopeland.com>
Cc: linux-wireless@vger.kernel.org, ath10k@lists.infradead.org
Subject: Re: ath10k: fix potential null dereference bugs
Date: Thu, 30 Jun 2016 12:54:40 +0200	[thread overview]
Message-ID: <fa78b1942cf2454898cc33b31a253b81@euamsexm01a.eu.qualcomm.com> (raw)
In-Reply-To: <1465563164-783-1-git-send-email-me@bobcopeland.com>

Bob Copeland <me@bobcopeland.com> wrote:
> Smatch warns about a number of cases in ath10k where a pointer is
> null-checked after it has already been dereferenced, in code involving
> ath10k private virtual interface pointers.
> 
> Fix these by making the dereference happen later.
> 
> Addresses the following smatch warnings:
> 
> drivers/net/wireless/ath/ath10k/mac.c:3651 ath10k_mac_txq_init() warn: variable dereferenced before check 'txq' (see line 3649)
> drivers/net/wireless/ath/ath10k/mac.c:3664 ath10k_mac_txq_unref() warn: variable dereferenced before check 'txq' (see line 3659)
> drivers/net/wireless/ath/ath10k/htt_tx.c:70 __ath10k_htt_tx_txq_recalc() warn: variable dereferenced before check 'txq->sta' (see line 52)
> drivers/net/wireless/ath/ath10k/htt_tx.c:740 ath10k_htt_tx_get_vdev_id() warn: variable dereferenced before check 'cb->vif' (see line 736)
> drivers/net/wireless/ath/ath10k/txrx.c:86 ath10k_txrx_tx_unref() warn: variable dereferenced before check 'txq' (see line 84)
> drivers/net/wireless/ath/ath10k/wmi.c:1837 ath10k_wmi_op_gen_mgmt_tx() warn: variable dereferenced before check 'cb->vif' (see line 1825)
> 
> Signed-off-by: Bob Copeland <me@bobcopeland.com>

Thanks, 1 patch applied to ath-next branch of ath.git:

a66cd733a729 ath10k: fix potential null dereference bugs

-- 
Sent by pwcli
https://patchwork.kernel.org/patch/9169669/


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  parent reply	other threads:[~2016-06-30 10:54 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-06-10 12:52 [PATCH] ath10k: fix potential null dereference bugs Bob Copeland
2016-06-10 12:52 ` Bob Copeland
2016-06-13  5:39 ` Michal Kazior
2016-06-13  5:39   ` Michal Kazior
2016-06-13  9:08   ` Johannes Berg
2016-06-13  9:08     ` Johannes Berg
2016-06-13 13:05     ` Bob Copeland
2016-06-13 13:05       ` Bob Copeland
2016-06-13 13:18       ` Johannes Berg
2016-06-13 13:18         ` Johannes Berg
2016-06-14 13:51         ` Valo, Kalle
2016-06-14 13:51           ` Valo, Kalle
2016-06-14 14:16           ` Bob Copeland
2016-06-14 14:16             ` Bob Copeland
2016-06-14 14:39             ` Valo, Kalle
2016-06-14 14:39               ` Valo, Kalle
2016-06-14 13:53 ` Valo, Kalle
2016-06-14 13:53   ` Valo, Kalle
2016-06-30 10:54 ` Kalle Valo [this message]
2016-06-30 10:54   ` Kalle Valo

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