[PATCH net-next] net: dsa: mv88e6xxx: Be explicit about DT or pdata

[Andrew Lunn]

Make it explicit that either device tree is used or platform data.  If
neither is available, abort the probe.

Reported-by: Dan Carpenter <dan.carpen...@oracle.com>
Fixes: 877b7cb0b6f2 ("net: dsa: mv88e6xxx: Add minimal platform_data support")
Signed-off-by: Andrew Lunn <and...@lunn.ch>
---
 drivers/net/dsa/mv88e6xxx/chip.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
index 12df00f593b7..437cd6eb4faa 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -4389,6 +4389,9 @@ static int mv88e6xxx_probe(struct mdio_device *mdiodev)
        int port;
        int err;
 
+       if (!np && !pdata)
+               return -EINVAL;
+
        if (np)
                compat_info = of_device_get_match_data(dev);
 
-- 
2.17.0