Commit 3a10e3dd authored Mar 18, 2019 by Aditya Pakki Committed by Greg Kroah-Hartman Mar 19, 2019

serial: max310x: Fix to avoid potential NULL pointer dereference



of_match_device can return a NULL pointer when matching device is not
found. This patch avoids a scenario causing NULL pointer derefernce.

Signed-off-by: Aditya Pakki <pakki001@umn.edu>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent 32f47179

drivers/tty/serial/max310x.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -1415,6 +1415,8 @@ static int max310x_spi_probe(struct spi_device *spi)
		if (spi->dev.of_node) {
		const struct of_device_id *of_id =
		of_match_device(max310x_dt_ids, &spi->dev);
		if (!of_id)
		return -ENODEV;

		devtype = (struct max310x_devtype *)of_id->data;
		} else {

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