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serial: pic32: fix missing clk_disable_unprepare() on error in pic32_uart_startup()

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Fix the missing clk_disable_unprepare() before return
from pic32_uart_startup() in the error handling case.

Fixes: 157b939470 ("serial: pic32_uart: Add PIC32 UART driver")
Reported-by: Hulk Robot <hulkci@huawei.com>
Reviewed-by: Jiri Slaby <jirislaby@kernel.org>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20220525021204.2407631-1-yangyingliang@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Yang Yingliang 2022-05-25 10:12:04 +08:00 committed by Greg Kroah-Hartman
parent d93e612d13
commit 6f3cdf2bf1
1 changed files with 3 additions and 1 deletions
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4
drivers/tty/serial/pic32_uart.c
View file

@ -503,7 +503,7 @@ static int pic32_uart_startup(struct uart_port *port)
if (!sport->irq_fault_name) {
dev_err(port->dev, "%s: kasprintf err!", __func__);
ret = -ENOMEM;
goto out_done;
goto out_disable_clk;
}
irq_set_status_flags(sport->irq_fault, IRQ_NOAUTOEN);
ret = request_irq(sport->irq_fault, pic32_uart_fault_interrupt,
@ -579,6 +579,8 @@ static int pic32_uart_startup(struct uart_port *port)
out_f:
free_irq(sport->irq_fault, port);
kfree(sport->irq_fault_name);
out_disable_clk:
clk_disable_unprepare(sport->clk);
out_done:
return ret;
}