linux-kernel - [PATCH 5.7 289/393] qtnfmac: Missing platform_device_unregister() on error in qtnf_core_mac

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Date:   Mon, 17 Aug 2020 17:15:39 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Hulk Robot <hulkci@...wei.com>,
        Wang Hai <wanghai38@...wei.com>,
        Sergey Matyukevich <geomatsi@...il.com>,
        Kalle Valo <kvalo@...eaurora.org>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.7 289/393] qtnfmac: Missing platform_device_unregister() on error in qtnf_core_mac_alloc()

From: Wang Hai <wanghai38@...wei.com>

[ Upstream commit 141bc9abbbffa89d020957caa9ac4a61d0ef1e26 ]

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>
Reviewed-by: Sergey Matyukevich <geomatsi@...il.com>
Signed-off-by: Kalle Valo <kvalo@...eaurora.org>
Link: https://lore.kernel.org/r/20200730064910.37589-1-wanghai38@huawei.com
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 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 eea777f8acea5..6aafff9d4231b 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);
 
-- 
2.25.1