diff mbox

[v2,media] tc358743: validate lane count

Message ID 20171017110511.18345-1-p.zabel@pengutronix.de (mailing list archive)
State New, archived
Headers show

Commit Message

Philipp Zabel Oct. 17, 2017, 11:05 a.m. UTC 
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>
---
v2: drop lane order check, as suggested by Sakari
---
 drivers/media/i2c/tc358743.c | 5 +++++
 1 file changed, 5 insertions(+)
diff mbox

Patch

diff --git a/drivers/media/i2c/tc358743.c b/drivers/media/i2c/tc358743.c
index a9355032076f9..8bfb3f56502b7 100644
--- a/drivers/media/i2c/tc358743.c
+++ b/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);