netdev - [PATCH v2 net] ieee802154: fix one possible memleak in adf7242

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Date:   Mon, 20 Jul 2020 22:30:01 +0800
From:   Liu Jian <liujian56@...wei.com>
To:     <michael.hennerich@...log.com>, <alex.aring@...il.com>,
        <stefan@...enfreihafen.org>, <davem@...emloft.net>,
        <kuba@...nel.org>, <kjlu@....edu>, <netdev@...r.kernel.org>
Subject: [PATCH v2 net] ieee802154: fix one possible memleak in adf7242_probe

When probe fail, we should destroy the workqueue.

Fixes: 2795e8c25161 ("net: ieee802154: fix a potential NULL pointer dereference")
Signed-off-by: Liu Jian <liujian56@...wei.com>
---
v1->v2:
Change targeting from "net-next" to "net"

 drivers/net/ieee802154/adf7242.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ieee802154/adf7242.c b/drivers/net/ieee802154/adf7242.c
index 5a37514e4234..8dbccec6ac86 100644
--- a/drivers/net/ieee802154/adf7242.c
+++ b/drivers/net/ieee802154/adf7242.c
@@ -1262,7 +1262,7 @@ static int adf7242_probe(struct spi_device *spi)
 					     WQ_MEM_RECLAIM);
 	if (unlikely(!lp->wqueue)) {
 		ret = -ENOMEM;
-		goto err_hw_init;
+		goto err_alloc_wq;
 	}
 
 	ret = adf7242_hw_init(lp);
@@ -1294,6 +1294,8 @@ static int adf7242_probe(struct spi_device *spi)
 	return ret;
 
 err_hw_init:
+	destroy_workqueue(lp->wqueue);
+err_alloc_wq:
 	mutex_destroy(&lp->bmux);
 	ieee802154_free_hw(lp->hw);
 
-- 
2.17.1