media: tc358743: validate lane count

The TC358743 does not support more than 4 data lanes. Check that the
lane count is valid.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

drivers/media/i2c/tc358743.c

@@ -1941,6 +1941,11 @@ static int tc358743_probe_of(struct tc358743_state *state)
 		goto free_endpoint;
 	}
 
+	if (endpoint->bus.mipi_csi2.num_data_lanes > 4) {
+		dev_err(dev, "invalid number of lanes\n");
+		goto free_endpoint;
+	}
+
 	state->bus = endpoint->bus.mipi_csi2;
 
 	ret = clk_prepare_enable(refclk);