Commit 4e8da86f authored by Zhang Shurong's avatar Zhang Shurong Committed by Greg Kroah-Hartman
Browse files

tty: serial: linflexuart: Fix to check return value of platform_get_irq() in linflex_probe() 



The platform_get_irq might be failed and return a negative result. So
there should have an error handling code.

Fixed this by adding an error handling code.

Signed-off-by: default avatarZhang Shurong <zhang_shurong@foxmail.com>
Link: https://lore.kernel.org/r/tencent_234B0AACD06350E10D7548C2E086A9166305@qq.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 66ebe67d

drivers/tty/serial/fsl_linflexuart.c

+5 −1
Original line number Diff line number Diff line
@@ -832,10 +832,14 @@ static int linflex_probe(struct platform_device *pdev) 
		return PTR_ERR(sport->membase);

	sport->mapbase = res->start;



	ret = platform_get_irq(pdev, 0);

	if (ret < 0)

		return ret;



	sport->dev = &pdev->dev;

	sport->type = PORT_LINFLEXUART;

	sport->iotype = UPIO_MEM;

	sport->irq = platform_get_irq(pdev, 0);

	sport->irq = ret;

	sport->ops = &linflex_pops;

	sport->flags = UPF_BOOT_AUTOCONF;

	sport->has_sysrq = IS_ENABLED(CONFIG_SERIAL_FSL_LINFLEXUART_CONSOLE);