diff options
| author |   Stanislaw Gruszka <sgruszka@redhat.com> | 2019-03-07 13:22:21 +0100 |
|---|---|---|
| committer |   Kalle Valo <kvalo@codeaurora.org> | 2019-03-19 17:33:33 +0200 |
| commit | 40b941611bd4826b7e3e449f738af98ad22e1ce6 (patch) | |
| tree | e6b4907453555d694824893d6a0d08a5b380ab54 /drivers/net/wireless/mediatek/mt76/mt76x2/usb.c | |
| parent | mt7601u: check chip version on probe (diff) | |
| download | wireguard-linux-40b941611bd4826b7e3e449f738af98ad22e1ce6.tar.xz wireguard-linux-40b941611bd4826b7e3e449f738af98ad22e1ce6.zip | |
mt76x02u: check chip version on probe
Since some USB device IDs are duplicated between mt76x0u, mt7601u
and mt76x2u device, check chip version on probe and return error if
not match the driver.
Don't think this is serious issue, probe most likely will fail at
some other point for wrong device, but we do not have to configure
it if we know is not our device.
Reported-by: Xose Vazquez Perez <xose.vazquez@gmail.com>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Diffstat (limited to 'drivers/net/wireless/mediatek/mt76/mt76x2/usb.c')
| -rw-r--r-- | drivers/net/wireless/mediatek/mt76/mt76x2/usb.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/mt76x2/usb.c b/drivers/net/wireless/mediatek/mt76/mt76x2/usb.c index 7a5d539873ca..ac0f13d46299 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76x2/usb.c +++ b/drivers/net/wireless/mediatek/mt76/mt76x2/usb.c @@ -65,6 +65,10 @@ static int mt76x2u_probe(struct usb_interface *intf, mdev->rev = mt76_rr(dev, MT_ASIC_VERSION); dev_info(mdev->dev, "ASIC revision: %08x\n", mdev->rev); + if (!is_mt76x2(dev)) { + err = -ENODEV; + goto err; + } err = mt76x2u_register_device(dev); if (err < 0) |