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From: greearb at gmail.com <greearb@gmail.com>
To: ath9k-devel@lists.ath9k.org
Subject: [ath9k-devel] [PATCH] ath9k:  Check for NULL sta in ath_tx_start
Date: Mon,  6 Dec 2010 21:13:49 -0800	[thread overview]
Message-ID: <1291698829-22765-1-git-send-email-greearb@candelatech.com> (raw)

From: Ben Greear <greearb@candelatech.com>

It can be NULL according to docs, and logging showed it
to be NULL in practice.

Signed-off-by: Ben Greear <greearb@candelatech.com>
---
:100644 100644 8b0b076... 5ddca08... M	drivers/net/wireless/ath/ath9k/xmit.c
 drivers/net/wireless/ath/ath9k/xmit.c |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)

diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c
index 8b0b076..5ddca08 100644
--- a/drivers/net/wireless/ath/ath9k/xmit.c
+++ b/drivers/net/wireless/ath/ath9k/xmit.c
@@ -1764,7 +1764,10 @@ int ath_tx_start(struct ieee80211_hw *hw, struct sk_buff *skb,
 	int frmlen = skb->len + FCS_LEN;
 	int q;
 
-	txctl->an = (struct ath_node *)sta->drv_priv;
+	/* NOTE:  sta can be NULL according to net/mac80211.h */
+	if (sta)
+		txctl->an = (struct ath_node *)sta->drv_priv;
+
 	if (info->control.hw_key)
 		frmlen += info->control.hw_key->icv_len;
 
-- 
1.7.2.3

WARNING: multiple messages have this Message-ID (diff)
From: greearb@gmail.com
To: linux-wireless@vger.kernel.org
Cc: ath9k-devel@venema.h4ckr.net, Ben Greear <greearb@candelatech.com>
Subject: [PATCH] ath9k:  Check for NULL sta in ath_tx_start
Date: Mon,  6 Dec 2010 21:13:49 -0800	[thread overview]
Message-ID: <1291698829-22765-1-git-send-email-greearb@candelatech.com> (raw)

From: Ben Greear <greearb@candelatech.com>

It can be NULL according to docs, and logging showed it
to be NULL in practice.

Signed-off-by: Ben Greear <greearb@candelatech.com>
---
:100644 100644 8b0b076... 5ddca08... M	drivers/net/wireless/ath/ath9k/xmit.c
 drivers/net/wireless/ath/ath9k/xmit.c |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)

diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c
index 8b0b076..5ddca08 100644
--- a/drivers/net/wireless/ath/ath9k/xmit.c
+++ b/drivers/net/wireless/ath/ath9k/xmit.c
@@ -1764,7 +1764,10 @@ int ath_tx_start(struct ieee80211_hw *hw, struct sk_buff *skb,
 	int frmlen = skb->len + FCS_LEN;
 	int q;
 
-	txctl->an = (struct ath_node *)sta->drv_priv;
+	/* NOTE:  sta can be NULL according to net/mac80211.h */
+	if (sta)
+		txctl->an = (struct ath_node *)sta->drv_priv;
+
 	if (info->control.hw_key)
 		frmlen += info->control.hw_key->icv_len;
 
-- 
1.7.2.3


             reply	other threads:[~2010-12-07  5:13 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-12-07  5:13 greearb at gmail.com [this message]
2010-12-07  5:13 ` [PATCH] ath9k: Check for NULL sta in ath_tx_start greearb
2010-12-07  5:21 ` [ath9k-devel] " Luis R. Rodriguez
2010-12-07  5:21   ` Luis R. Rodriguez
2010-12-07  5:36   ` [ath9k-devel] " Ben Greear
2010-12-07  5:36     ` Ben Greear
2010-12-07  7:42     ` [ath9k-devel] " Vasanthakumar Thiagarajan
2010-12-07  7:42       ` Vasanthakumar Thiagarajan
2010-12-07  7:49       ` [ath9k-devel] " Ben Greear
2010-12-07  7:49         ` Ben Greear
2010-12-07  8:31         ` [ath9k-devel] " Vasanthakumar Thiagarajan
2010-12-07  8:31           ` Vasanthakumar Thiagarajan
2010-12-07 17:13           ` [ath9k-devel] " Ben Greear
2010-12-07 17:13             ` Ben Greear
2010-12-08  5:17             ` [ath9k-devel] " Vasanthakumar Thiagarajan
2010-12-08  5:17               ` Vasanthakumar Thiagarajan
2010-12-08 15:40               ` [ath9k-devel] " Ben Greear
2010-12-08 15:40                 ` Ben Greear

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