Messages in this thread Patch in this message | | | From | Sherry Sun <> | Subject | [PATCH 2/2] tty: serial: fsl_lpuart: fix the potential bug of dereference null return value | Date | Mon, 26 Apr 2021 15:49:35 +0800 |
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This issue is reported by Coverity Check. In lpuart_probe, return value of function which returns null is dereferenced without checking.
Signed-off-by: Sherry Sun <sherry.sun@nxp.com> --- drivers/tty/serial/fsl_lpuart.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/tty/serial/fsl_lpuart.c b/drivers/tty/serial/fsl_lpuart.c index 777d54b593f8..c95e71fd2ca0 100644 --- a/drivers/tty/serial/fsl_lpuart.c +++ b/drivers/tty/serial/fsl_lpuart.c @@ -2589,6 +2589,9 @@ static int lpuart_probe(struct platform_device *pdev) struct resource *res; int ret; + if (!sdata) + return -ENODEV; + sport = devm_kzalloc(&pdev->dev, sizeof(*sport), GFP_KERNEL); if (!sport) return -ENOMEM; -- 2.17.1
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