From: tangbin <tangbin@cmss.chinamobile.com> commit 4a3e208474204e879d22a310b244cb2f39e5b1f8 upstream. in this place, the function should return a negative value and the PTR_ERR already returns a negative,so return -PTR_ERR() is wrong. Signed-off-by: tangbin <tangbin@cmss.chinamobile.com> Cc: stable <stable@vger.kernel.org> Acked-by: Jiri Slaby <jslaby@suse.cz> Link: https://lore.kernel.org/r/20200305013823.20976-1-tangbin@cmss.chinamobile.co... Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> --- drivers/tty/serial/mvebu-uart.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/tty/serial/mvebu-uart.c b/drivers/tty/serial/mvebu-uart.c index 7d26c9b..fb9d369 100644 --- a/drivers/tty/serial/mvebu-uart.c +++ b/drivers/tty/serial/mvebu-uart.c @@ -840,7 +840,7 @@ static int mvebu_uart_probe(struct platform_device *pdev) port->membase = devm_ioremap_resource(&pdev->dev, reg); if (IS_ERR(port->membase)) - return -PTR_ERR(port->membase); + return PTR_ERR(port->membase); mvuart = devm_kzalloc(&pdev->dev, sizeof(struct mvebu_uart), GFP_KERNEL); -- 1.8.3