The pdev->dev.of_node can be NULL if the "serial" node is absent.
Add a NULL check for np to return an error in such cases.
Found by code review. Compile tested only.
Cc: stable@xxxxxxxxxxxxxxx
Fixes: 09864c1cdf5c ("tty: serial: Add linflexuart driver for S32V234")
Signed-off-by: Ma Ke <make24@xxxxxxxxxxx>
---
drivers/tty/serial/fsl_linflexuart.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/tty/serial/fsl_linflexuart.c b/drivers/tty/serial/fsl_linflexuart.c
index e972df4b188d..f46f3c21ee1b 100644
--- a/drivers/tty/serial/fsl_linflexuart.c
+++ b/drivers/tty/serial/fsl_linflexuart.c
@@ -811,6 +811,9 @@ static int linflex_probe(struct platform_device *pdev)
struct resource *res;
int ret;
+ if (!np)
+ return -ENODEV;
+
sport = devm_kzalloc(&pdev->dev, sizeof(*sport), GFP_KERNEL);
if (!sport)
return -ENOMEM;
--
2.25.1
