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

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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: Zhang Shurong <zhang_shurong@foxmail.com>
Link: https://lore.kernel.org/r/tencent_234B0AACD06350E10D7548C2E086A9166305@qq.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Zhang Shurong 2023-08-26 17:32:24 +08:00 committed by Greg Kroah-Hartman
parent 66ebe67d1b
commit 4e8da86fc1
1 changed files with 5 additions and 1 deletions
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6
drivers/tty/serial/fsl_linflexuart.c
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@ -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);