diff options
| -rw-r--r-- | drivers/usb/typec/ucsi/ucsi.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/usb/typec/ucsi/ucsi.c b/drivers/usb/typec/ucsi/ucsi.c index 3f568f790f39..3995483a0aa0 100644 --- a/drivers/usb/typec/ucsi/ucsi.c +++ b/drivers/usb/typec/ucsi/ucsi.c @@ -1807,6 +1807,12 @@ static int ucsi_init(struct ucsi *ucsi) ret = -ENODEV; goto err_reset; } + /* Check if reserved bit set. This is out of spec but happens in buggy FW */ + if (ucsi->cap.num_connectors & 0x80) { + dev_warn(ucsi->dev, "UCSI: Invalid num_connectors %d. Likely buggy FW\n", + ucsi->cap.num_connectors); + ucsi->cap.num_connectors &= 0x7f; // clear bit and carry on + } /* Allocate the connectors. Released in ucsi_unregister() */ connector = kcalloc(ucsi->cap.num_connectors + 1, sizeof(*connector), GFP_KERNEL); |