linux-kernel - [PATCH -next] tty: serial: bcm63xx: fix missing clk_put() in bcm63xx

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Date:   Tue, 21 Apr 2020 20:31:46 +0800
From:   Zou Wei <zou_wei@...wei.com>
To:     <gregkh@...uxfoundation.org>, <jslaby@...e.com>,
        <f.fainelli@...il.com>, <bcm-kernel-feedback-list@...adcom.com>,
        <linux-serial@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>
CC:     Zou Wei <zou_wei@...wei.com>
Subject: [PATCH -next] tty: serial: bcm63xx: fix missing clk_put() in bcm63xx_uart

This patch fixes below error reported by coccicheck

drivers/tty/serial/bcm63xx_uart.c:848:2-8: ERROR: missing clk_put;
clk_get on line 842 and execution via conditional on line 846

Fixes: ab4382d27412 ("tty: move drivers/serial/ to drivers/tty/serial/")
Reported-by: Hulk Robot <hulkci@...wei.com>
Signed-off-by: Zou Wei <zou_wei@...wei.com>
---
 drivers/tty/serial/bcm63xx_uart.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/tty/serial/bcm63xx_uart.c b/drivers/tty/serial/bcm63xx_uart.c
index 5674da2..ed0aa5c 100644
--- a/drivers/tty/serial/bcm63xx_uart.c
+++ b/drivers/tty/serial/bcm63xx_uart.c
@@ -843,8 +843,10 @@ static int bcm_uart_probe(struct platform_device *pdev)
 	if (IS_ERR(clk) && pdev->dev.of_node)
 		clk = of_clk_get(pdev->dev.of_node, 0);
 
-	if (IS_ERR(clk))
+	if (IS_ERR(clk)) {
+		clk_put(clk);
 		return -ENODEV;
+	}
 
 	port->iotype = UPIO_MEM;
 	port->irq = res_irq->start;
-- 
2.6.2