[PATCH net-next] brcm80211: fix possible memleak in brcmf_proto_msgbuf_attach

[Wang Yufen]

When brcmf_proto_msgbuf_attach fail and msgbuf->txflow_wq != NULL,
we should destroy the workqueue.

Fixes: 05491d2ccf20 ("brcm80211: move under broadcom vendor directory")
Reported-by: Hulk Robot <hulkci@xxxxxxxxxx>
Signed-off-by: Wang Yufen <wangyufen@xxxxxxxxxx>
---
 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 8bb4f1f..1bb270e 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/msgbuf.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/msgbuf.c
@@ -1619,6 +1619,8 @@ 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;
-- 
1.8.3