linux-kernel - [PATCH] soc: bcm: brcmstb: Add of_node

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Message-Id: <20211015064958.9826-1-wanjiabing@vivo.com>
Date:   Fri, 15 Oct 2021 02:49:23 -0400
From:   Wan Jiabing <wanjiabing@...o.com>
To:     Florian Fainelli <f.fainelli@...il.com>,
        bcm-kernel-feedback-list@...adcom.com,
        Wan Jiabing <wanjiabing@...o.com>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Cc:     kael_w@...h.net
Subject: [PATCH] soc: bcm: brcmstb: Add of_node_put() in pm-mips

Fix following coccicheck warning:
./drivers/soc/bcm/brcmstb/pm/pm-mips.c:404:1-23: WARNING: Function
for_each_matching_node should have of_node_put() before goto or break

Early exits from for_each_matching_node should decrement the
node reference counter.

Signed-off-by: Wan Jiabing <wanjiabing@...o.com>
---
 drivers/soc/bcm/brcmstb/pm/pm-mips.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/soc/bcm/brcmstb/pm/pm-mips.c b/drivers/soc/bcm/brcmstb/pm/pm-mips.c
index cdc3e387f049..4dfb5a85032b 100644
--- a/drivers/soc/bcm/brcmstb/pm/pm-mips.c
+++ b/drivers/soc/bcm/brcmstb/pm/pm-mips.c
@@ -405,11 +405,14 @@ static int brcmstb_pm_init(void)
 		i = ctrl.num_memc;
 		if (i >= MAX_NUM_MEMC) {
 			pr_warn("Too many MEMCs (max %d)\n", MAX_NUM_MEMC);
+			of_node_put(dn);
 			break;
 		}
 		base = brcmstb_ioremap_node(dn, 0);
-		if (IS_ERR(base))
+		if (IS_ERR(base)) {
+			of_node_put(dn);
 			goto ddr_err;
+		}
 
 		ctrl.memcs[i].ddr_phy_base = base;
 		ctrl.num_memc++;
-- 
2.20.1