From: David Bauer <mail@david-bauer.net>
To: Felix Fietkau <nbd@nbd.name>,
Lorenzo Bianconi <lorenzo@kernel.org>,
Ryder Lee <ryder.lee@mediatek.com>,
Shayne Chen <shayne.chen@mediatek.com>,
Sean Wang <sean.wang@mediatek.com>,
Matthias Brugger <matthias.bgg@gmail.com>,
AngeloGioacchino Del Regno
<angelogioacchino.delregno@collabora.com>
Cc: linux-wireless@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-mediatek@lists.infradead.org
Subject: [PATCH mt76] wifi: mt76: mt7603: free beacon SKB on error
Date: Thu, 11 Jun 2026 23:56:56 +0200 [thread overview]
Message-ID: <20260611215658.259324-1-mail@david-bauer.net> (raw)
The SKB containing the generated beacon is not freed when the beacon
queue is deected stuck and scheduled for recovery.
Fixes potential memory leaks in case the beacon queue is detected stuck.
Signed-off-by: David Bauer <mail@david-bauer.net>
---
drivers/net/wireless/mediatek/mt76/mt7603/beacon.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7603/beacon.c b/drivers/net/wireless/mediatek/mt76/mt7603/beacon.c
index 300a7f9c2ef11..acca98139f92e 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7603/beacon.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7603/beacon.c
@@ -56,6 +56,7 @@ mt7603_update_beacon_iter(void *priv, u8 *mac, struct ieee80211_vif *vif)
FIELD_PREP(MT_DMA_FQCR0_TARGET_QID, MT_TX_HW_QUEUE_BCN));
if (!mt76_poll(dev, MT_DMA_FQCR0, MT_DMA_FQCR0_BUSY, 0, 5000)) {
dev->beacon_check = MT7603_WATCHDOG_TIMEOUT;
+ dev_kfree_skb(skb);
goto out;
}
@@ -63,6 +64,7 @@ mt7603_update_beacon_iter(void *priv, u8 *mac, struct ieee80211_vif *vif)
FIELD_PREP(MT_DMA_FQCR0_TARGET_QID, MT_TX_HW_QUEUE_BMC));
if (!mt76_poll(dev, MT_DMA_FQCR0, MT_DMA_FQCR0_BUSY, 0, 5000)) {
dev->beacon_check = MT7603_WATCHDOG_TIMEOUT;
+ dev_kfree_skb(skb);
goto out;
}
--
2.53.0
reply other threads:[~2026-06-11 21:57 UTC|newest]
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