linux-kernel - [PATCH net] qtnfmac: Missing platform_device_unregister() on error in qtnf_core_mac

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Date:   Thu, 30 Jul 2020 14:49:10 +0800
From:   Wang Hai <wanghai38@...wei.com>
To:     <imitsyanko@...ntenna.com>, <geomatsi@...il.com>,
        <kvalo@...eaurora.org>, <davem@...emloft.net>, <kuba@...nel.org>,
        <mst@...hat.com>, <mkarpenko@...ntenna.com>
CC:     <linux-wireless@...r.kernel.org>, <netdev@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
Subject: [PATCH net] qtnfmac: Missing platform_device_unregister() on error in qtnf_core_mac_alloc()

Add the missing platform_device_unregister() before return from
qtnf_core_mac_alloc() in the error handling case.

Fixes: 616f5701f4ab ("qtnfmac: assign each wiphy to its own virtual platform device")
Reported-by: Hulk Robot <hulkci@...wei.com>
Signed-off-by: Wang Hai <wanghai38@...wei.com>
---
 drivers/net/wireless/quantenna/qtnfmac/core.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/quantenna/qtnfmac/core.c b/drivers/net/wireless/quantenna/qtnfmac/core.c
index eea777f8acea..6aafff9d4231 100644
--- a/drivers/net/wireless/quantenna/qtnfmac/core.c
+++ b/drivers/net/wireless/quantenna/qtnfmac/core.c
@@ -446,8 +446,11 @@ static struct qtnf_wmac *qtnf_core_mac_alloc(struct qtnf_bus *bus,
 	}
 
 	wiphy = qtnf_wiphy_allocate(bus, pdev);
-	if (!wiphy)
+	if (!wiphy) {
+		if (pdev)
+			platform_device_unregister(pdev);
 		return ERR_PTR(-ENOMEM);
+	}
 
 	mac = wiphy_priv(wiphy);
 
-- 
2.17.1