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38 lines
1.2 KiB
Diff
38 lines
1.2 KiB
Diff
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From e5d00646a207c4e9da254283eee2d278de338394 Mon Sep 17 00:00:00 2001
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From: Gabor Juhos <juhosg@openwrt.org>
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Date: Fri, 2 Jan 2009 16:17:25 +0100
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Subject: [RFC 12/12] ath9k: fix null pointer dereference in ani monitor code
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In 'ath9k_ani_reset' the 'ahp->ah_curani' will be initialized only
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if 'DO_ANI(ah)' true. In 'ath9k_hw_ani_monitor' we are using 'ahp->ah_curani'
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unconditionally, and it will cause a NULL pointer dereference on AR9100.
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Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
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Signed-off-by: Imre Kaloz <kaloz@openwrt.org>
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---
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drivers/net/wireless/ath9k/ani.c | 6 +++---
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1 files changed, 3 insertions(+), 3 deletions(-)
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--- a/drivers/net/wireless/ath9k/ani.c
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+++ b/drivers/net/wireless/ath9k/ani.c
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@@ -555,6 +555,9 @@ void ath9k_hw_ani_monitor(struct ath_hal
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struct ar5416AniState *aniState;
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int32_t listenTime;
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+ if (!DO_ANI(ah))
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+ return;
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+
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aniState = ahp->ah_curani;
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ahp->ah_stats.ast_nodestats = *stats;
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@@ -614,9 +617,6 @@ void ath9k_hw_ani_monitor(struct ath_hal
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aniState->cckPhyErrCount = cckPhyErrCnt;
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}
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- if (!DO_ANI(ah))
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- return;
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-
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if (aniState->listenTime > 5 * ahp->ah_aniPeriod) {
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if (aniState->ofdmPhyErrCount <= aniState->listenTime *
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aniState->ofdmTrigLow / 1000 &&
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