linux-kernel - [PATCH] mtd: spi-nor: hisi-sfc: Put child node np on error path

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Message-Id: <20210121091847.85362-1-bianpan2016@163.com>
Date:   Thu, 21 Jan 2021 01:18:47 -0800
From:   Pan Bian <bianpan2016@....com>
To:     Tudor Ambarus <tudor.ambarus@...rochip.com>,
        Miquel Raynal <miquel.raynal@...tlin.com>,
        Richard Weinberger <richard@....at>,
        Vignesh Raghavendra <vigneshr@...com>,
        Boris Brezillon <bbrezillon@...nel.org>,
        Lee Jones <lee.jones@...aro.org>,
        Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
Cc:     linux-mtd@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Pan Bian <bianpan2016@....com>
Subject: [PATCH] mtd: spi-nor: hisi-sfc: Put child node np on error path

Put the child node np when it fails to get or register device.

Signed-off-by: Pan Bian <bianpan2016@....com>
---
 drivers/mtd/spi-nor/controllers/hisi-sfc.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/mtd/spi-nor/controllers/hisi-sfc.c b/drivers/mtd/spi-nor/controllers/hisi-sfc.c
index 7c26f8f565cb..47fbf1d1e557 100644
--- a/drivers/mtd/spi-nor/controllers/hisi-sfc.c
+++ b/drivers/mtd/spi-nor/controllers/hisi-sfc.c
@@ -399,8 +399,10 @@ static int hisi_spi_nor_register_all(struct hifmc_host *host)
 
 	for_each_available_child_of_node(dev->of_node, np) {
 		ret = hisi_spi_nor_register(np, host);
-		if (ret)
+		if (ret) {
+			of_node_put(np);
 			goto fail;
+		}
 
 		if (host->num_chip == HIFMC_MAX_CHIP_NUM) {
 			dev_warn(dev, "Flash device number exceeds the maximum chipselect number\n");
-- 
2.17.1