From: <sean.wang@mediatek.com>
To: <nbd@nbd.name>, <lorenzo.bianconi@redhat.com>
Cc: <sean.wang@mediatek.com>, <ryder.lee@mediatek.com>,
<linux-wireless@vger.kernel.org>,
<linux-mediatek@lists.infradead.org>
Subject: [PATCH 3/3] mt76: mt7615: fix potential memory leak in mcu message handler
Date: Tue, 30 Jun 2020 12:37:51 +0800 [thread overview]
Message-ID: <b1dc67b62bcc53ad02e86099ac0aab312109094b.1593491298.git.sean.wang@mediatek.com> (raw)
In-Reply-To: <5e8786d9cf0ccd09dd9c13c24c48ce441afbf0ff.1593491298.git.sean.wang@mediatek.com>
From: Sean Wang <sean.wang@mediatek.com>
Fix potential memory leak in mcu message handler on error condition.
Fixes: 0e6a29e477f3 ("mt76: mt7615: add support to read temperature from mcu")
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
---
drivers/net/wireless/mediatek/mt76/mt7615/mcu.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7615/mcu.c
index 1b46cccd93c5..58e3838a3dba 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/mcu.c
@@ -183,8 +183,10 @@ mt7615_mcu_parse_response(struct mt7615_dev *dev, int cmd,
struct mt7615_mcu_rxd *rxd = (struct mt7615_mcu_rxd *)skb->data;
int ret = 0;
- if (seq != rxd->seq)
- return -EAGAIN;
+ if (seq != rxd->seq) {
+ ret = -EAGAIN;
+ goto out;
+ }
switch (cmd) {
case MCU_CMD_PATCH_SEM_CONTROL:
@@ -215,6 +217,7 @@ mt7615_mcu_parse_response(struct mt7615_dev *dev, int cmd,
default:
break;
}
+out:
dev_kfree_skb(skb);
return ret;
--
2.25.1
next prev parent reply other threads:[~2020-06-30 4:38 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-30 4:37 [PATCH 1/3] mt76: mt7663u: fix memory leak in set key sean.wang
2020-06-30 4:37 ` [PATCH 2/3] mt76: mt7663u: fix potential memory leak in mcu message handler sean.wang
2020-06-30 7:13 ` Lorenzo Bianconi
2020-06-30 4:37 ` sean.wang [this message]
2020-06-30 7:17 ` [PATCH 3/3] mt76: mt7615: " Lorenzo Bianconi
2020-06-30 7:07 ` [PATCH 1/3] mt76: mt7663u: fix memory leak in set key Lorenzo Bianconi
2020-06-30 7:24 ` Lorenzo Bianconi
2020-06-30 21:41 ` sean.wang
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