linux-kernel - [PATCH] soc: aspeed: Fix a reference leak in aspeed_socinfo

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Message-ID: <20201113100850.GA168908@mwanda>
Date:   Fri, 13 Nov 2020 13:08:50 +0300
From:   Dan Carpenter <dan.carpenter@...cle.com>
To:     Joel Stanley <joel@....id.au>
Cc:     Andrew Jeffery <andrew@...id.au>, Tom Rix <trix@...hat.com>,
        linux-aspeed@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
        kernel-janitors@...r.kernel.org
Subject: [PATCH] soc: aspeed: Fix a reference leak in aspeed_socinfo_init()

This needs to call of_node_put(np) before returning if of_iomap() fails.

Fixes: e0218dca5787 ("soc: aspeed: Add soc info driver")
Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com>
---
 drivers/soc/aspeed/aspeed-socinfo.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/soc/aspeed/aspeed-socinfo.c b/drivers/soc/aspeed/aspeed-socinfo.c
index 20a1d4aeb051..773930e0cb10 100644
--- a/drivers/soc/aspeed/aspeed-socinfo.c
+++ b/drivers/soc/aspeed/aspeed-socinfo.c
@@ -74,8 +74,10 @@ static int __init aspeed_socinfo_init(void)
 	}
 
 	reg = of_iomap(np, 0);
-	if (!reg)
+	if (!reg) {
+		of_node_put(np);
 		return -ENODEV;
+	}
 	siliconid = readl(reg);
 	iounmap(reg);
 
-- 
2.28.0