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tty: serial: owl: Fix missing clk_disable_unprepare() in owl_uart_probe

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[ Upstream commit bcea0f547ec1a2ee44d429aaf0334633e386e67c ]

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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Miaoqian Lin 2022-03-07 10:51:35 +00:00 committed by Greg Kroah-Hartman
parent 9ae3d073f7
commit 7320308b18
1 changed files with 1 additions and 0 deletions
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drivers/tty/serial/owl-uart.c
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@ -695,6 +695,7 @@ 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;