diff options
| author | Johan Hovold <johan@kernel.org> | 2019-11-28 18:22:04 +0100 |
|---|---|---|
| committer | Kalle Valo <kvalo@codeaurora.org> | 2019-12-18 20:57:07 +0200 |
| commit | 960da557f435bfe14edb160a42b8ed3a2e255e73 (patch) | |
| tree | 9ee8c58ffe608ef8b8950336685e45c328c2781a /drivers/net/wireless | |
| parent | b9b9f9fea21830f85cf0148cd8dce001ae55ead1 (diff) | |
rsi: add missing endpoint sanity checks
The driver expects at least one bulk-in endpoint when in "wifi-alone"
operating mode and two bulk-in endpoints otherwise, and would otherwise
fail to to submit the corresponding bulk URB to the default pipe during
probe with a somewhat cryptic message:
rsi_91x: rsi_rx_urb_submit: Failed in urb submission
rsi_91x: rsi_probe: Failed in probe...Exiting
RSI-USB WLAN: probe of 2-2.4:1.0 failed with error -8
The current endpoint sanity check looks broken and would only bail out
early if there was no bulk-in endpoint but at least one bulk-out
endpoint.
Tighten this check to always require at least one bulk-in and one
bulk-out endpoint, and add the missing sanity check for a Bluetooth
bulk-in endpoint when in a BT operating mode. Also make sure to log an
informative error message when the expected endpoints are missing.
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Diffstat (limited to 'drivers/net/wireless')
| -rw-r--r-- | drivers/net/wireless/rsi/rsi_91x_usb.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/drivers/net/wireless/rsi/rsi_91x_usb.c b/drivers/net/wireless/rsi/rsi_91x_usb.c index ead75574e10a..396b9b81c1cd 100644 --- a/drivers/net/wireless/rsi/rsi_91x_usb.c +++ b/drivers/net/wireless/rsi/rsi_91x_usb.c @@ -149,9 +149,17 @@ static int rsi_find_bulk_in_and_out_endpoints(struct usb_interface *interface, break; } - if (!(dev->bulkin_endpoint_addr[0]) && - dev->bulkout_endpoint_addr[0]) + if (!(dev->bulkin_endpoint_addr[0] && dev->bulkout_endpoint_addr[0])) { + dev_err(&interface->dev, "missing wlan bulk endpoints\n"); return -EINVAL; + } + + if (adapter->priv->coex_mode > 1) { + if (!dev->bulkin_endpoint_addr[1]) { + dev_err(&interface->dev, "missing bt bulk-in endpoint\n"); + return -EINVAL; + } + } return 0; } |