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mt76: mt7615: fix potential memory leak in mcu message handler 

[ Upstream commit 9248c08c3f ]

Fix potential memory leak in mcu message handler on error condition.

Fixes: 0e6a29e477 ("mt76: mt7615: add support to read temperature from mcu")
Acked-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Sean Wang 2020-07-08 03:16:48 +08:00 committed by Greg Kroah-Hartman
parent 54c9afe415
commit 2bf9418b7b
1 changed files with 5 additions and 2 deletions
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7
drivers/net/wireless/mediatek/mt76/mt7615/mcu.c
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@ -119,8 +119,10 @@ mt7615_mcu_parse_response(struct mt7615_dev *dev, int cmd,
struct mt7615_mcu_rxd *rxd = (struct mt7615_mcu_rxd *)skb->data; struct mt7615_mcu_rxd *rxd = (struct mt7615_mcu_rxd *)skb->data;
int ret = 0; int ret = 0;
if (seq != rxd->seq) if (seq != rxd->seq) {
return -EAGAIN; ret = -EAGAIN;
goto out;
}
switch (cmd) { switch (cmd) {
case -MCU_CMD_PATCH_SEM_CONTROL: case -MCU_CMD_PATCH_SEM_CONTROL:
@ -134,6 +136,7 @@ mt7615_mcu_parse_response(struct mt7615_dev *dev, int cmd,
default: default:
break; break;
} }
out:
dev_kfree_skb(skb); dev_kfree_skb(skb);
return ret; return ret;