Commit d45ebf1f authored Dec 02, 2018 by Andi Shyti Committed by Jonathan Cameron Dec 08, 2018

iio: core: check 'info' value before registering the device



When the 'info' structure inside indio_dev is left uninitialized,
a segmentation fault occurs.

Check the 'info' value before using it and if it is equal to
NULL, return with -EINVAL.

Signed-off-by: Andi Shyti <andi@etezian.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

parent 794e20ee

drivers/iio/industrialio-core.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -1671,6 +1671,9 @@ int __iio_device_register(struct iio_dev indio_dev, struct module this_mod)
		if (ret < 0)
		return ret;

		if (!indio_dev->info)
		return -EINVAL;

		/* configure elements for the chrdev */
		indio_dev->dev.devt = MKDEV(MAJOR(iio_devt), indio_dev->id);

Admin message