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Date: Sun, 18 Oct 2020 15:24:14 -0400 From: Sasha Levin <sashal@...nel.org> To: linux-kernel@...r.kernel.org, stable@...r.kernel.org Cc: Wang Yufen <wangyufen@...wei.com>, Hulk Robot <hulkci@...wei.com>, Kalle Valo <kvalo@...eaurora.org>, Sasha Levin <sashal@...nel.org>, linux-wireless@...r.kernel.org, brcm80211-dev-list.pdl@...adcom.com, brcm80211-dev-list@...ress.com, netdev@...r.kernel.org Subject: [PATCH AUTOSEL 4.19 53/56] brcm80211: fix possible memleak in brcmf_proto_msgbuf_attach From: Wang Yufen <wangyufen@...wei.com> [ Upstream commit 6c151410d5b57e6bb0d91a735ac511459539a7bf ] When brcmf_proto_msgbuf_attach fail and msgbuf->txflow_wq != NULL, we should destroy the workqueue. Reported-by: Hulk Robot <hulkci@...wei.com> Signed-off-by: Wang Yufen <wangyufen@...wei.com> Signed-off-by: Kalle Valo <kvalo@...eaurora.org> Link: https://lore.kernel.org/r/1595237765-66238-1-git-send-email-wangyufen@huawei.com Signed-off-by: Sasha Levin <sashal@...nel.org> --- drivers/net/wireless/broadcom/brcm80211/brcmfmac/msgbuf.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/msgbuf.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/msgbuf.c index ee922b0525610..768a99c15c08b 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/msgbuf.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/msgbuf.c @@ -1563,6 +1563,8 @@ int brcmf_proto_msgbuf_attach(struct brcmf_pub *drvr) BRCMF_TX_IOCTL_MAX_MSG_SIZE, msgbuf->ioctbuf, msgbuf->ioctbuf_handle); + if (msgbuf->txflow_wq) + destroy_workqueue(msgbuf->txflow_wq); kfree(msgbuf); } return -ENOMEM; -- 2.25.1
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