From bcea0f547ec1a2ee44d429aaf0334633e386e67c Mon Sep 17 00:00:00 2001
From: Miaoqian Lin <linmq006@gmail.com>
Date: Mon, 7 Mar 2022 10:51:35 +0000
Subject: [PATCH] tty: serial: owl: Fix missing clk_disable_unprepare() in owl_uart_probe
Git-commit: bcea0f547ec1a2ee44d429aaf0334633e386e67c
Patch-mainline: v5.19-rc1
References: git-fixes
Fix the missing clk_disable_unprepare() before return
from owl_uart_probe() in the error handling case.
Fixes: abf42d2f333b ("tty: serial: owl: add "much needed" clk_prepare_enable()")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Link: https://lore.kernel.org/r/20220307105135.11698-1-linmq006@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/tty/serial/owl-uart.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/tty/serial/owl-uart.c b/drivers/tty/serial/owl-uart.c
index 5ff7c89aeb06..44d20e5a7dd3 100644
--- a/drivers/tty/serial/owl-uart.c
+++ b/drivers/tty/serial/owl-uart.c
@@ -731,6 +731,7 @@ static int owl_uart_probe(struct platform_device *pdev)
owl_port->port.uartclk = clk_get_rate(owl_port->clk);
if (owl_port->port.uartclk == 0) {
dev_err(&pdev->dev, "clock rate is zero\n");
+ clk_disable_unprepare(owl_port->clk);
return -EINVAL;
}
owl_port->port.flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP | UPF_LOW_LATENCY;
--
2.35.3