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authorGustavo A. R. Silva <garsilva@embeddedor.com>2017-07-07 01:51:31 -0500
committerJonathan Cameron <Jonathan.Cameron@huawei.com>2017-07-09 19:09:50 +0100
commit36d311bc1663f004529d2f870c1fc939d00c49f0 (patch)
tree87327c0b17189107a8cfa083d7c3ad18ce53c60f /drivers/iio/adc
parent2f9aeeed92a2911e8f1ec89cf7f5c16b8d054fe5 (diff)
iio: adc: rockchip_saradc: add NULL check on of_match_device() return value
Check return value from call to of_match_device() in order to prevent a NULL pointer dereference. In case of NULL print error message and return -ENODEV Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'drivers/iio/adc')
-rw-r--r--drivers/iio/adc/rockchip_saradc.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/iio/adc/rockchip_saradc.c b/drivers/iio/adc/rockchip_saradc.c
index ae6d3324f518..2bf2ed15a870 100644
--- a/drivers/iio/adc/rockchip_saradc.c
+++ b/drivers/iio/adc/rockchip_saradc.c
@@ -224,6 +224,11 @@ static int rockchip_saradc_probe(struct platform_device *pdev)
info = iio_priv(indio_dev);
match = of_match_device(rockchip_saradc_match, &pdev->dev);
+ if (!match) {
+ dev_err(&pdev->dev, "failed to match device\n");
+ return -ENODEV;
+ }
+
info->data = match->data;
mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);