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Subject[PATCH] spi: sifive: check return value for platform_get_resource()
platform_get_resource() may return NULL. If it is so, return -ENXIO

Signed-off-by: Aurabindo Jayamohanan <mail@aurabindo.in>
---
drivers/spi/spi-sifive.c | 6 ++++++
1 file changed, 6 insertions(+)

diff --git a/drivers/spi/spi-sifive.c b/drivers/spi/spi-sifive.c
index 93ec2c6cdbfd..67485067a694 100644
--- a/drivers/spi/spi-sifive.c
+++ b/drivers/spi/spi-sifive.c
@@ -308,6 +308,12 @@ static int sifive_spi_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, master);

res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res) {
+ dev_err(&pdev->dev, "no IOMEM resource found\n");
+ ret = -ENXIO;
+ goto put_master;
+ }
+
spi->regs = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(spi->regs)) {
ret = PTR_ERR(spi->regs);
--
2.23.0

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