[PATCH 1/3] spi: lpspi: add NULL check when probe device

[Clark Wang]

Add a NULL check for device node and lpspi_platform_info when lpspi
device probe.

Signed-off-by: Clark Wang <xiaoning.wang@xxxxxxx>
Acked-by: Fugang Duan <fugang.duan@xxxxxxx>
---
 drivers/spi/spi-fsl-lpspi.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/spi/spi-fsl-lpspi.c b/drivers/spi/spi-fsl-lpspi.c
index d08e9324140e..19040b5ef349 100644
--- a/drivers/spi/spi-fsl-lpspi.c
+++ b/drivers/spi/spi-fsl-lpspi.c
@@ -845,6 +845,11 @@ static int fsl_lpspi_probe(struct platform_device *pdev)
 	u32 temp;
 	bool is_slave;
 
+	if (!np && !lpspi_platform_info) {
+		dev_err(&pdev->dev, "can't get the platform data\n");
+		return -EINVAL;
+	}
+
 	is_slave = of_property_read_bool((&pdev->dev)->of_node, "spi-slave");
 	if (is_slave)
 		controller = spi_alloc_slave(&pdev->dev,
-- 
2.17.1