diff options
| author | Johan Hovold <johan@kernel.org> | 2018-07-04 17:02:19 +0200 |
|---|---|---|
| committer | Johan Hovold <johan@kernel.org> | 2018-07-06 10:42:42 +0200 |
| commit | af846a6f6de27eabcefa81ea98b0c3bd21aa25c7 (patch) | |
| tree | cdbf7611d09b2c0a49ed92c9ee62b08370cb0bd2 /drivers/usb/serial | |
| parent | a420b5d939ee58f1d950f0ea782834056520aeaa (diff) | |
| download | linux-rpi3-af846a6f6de27eabcefa81ea98b0c3bd21aa25c7.tar.gz linux-rpi3-af846a6f6de27eabcefa81ea98b0c3bd21aa25c7.tar.bz2 linux-rpi3-af846a6f6de27eabcefa81ea98b0c3bd21aa25c7.zip | |
USB: serial: kobil_sct: add missing version error handling
Add missing version-request error handling and suppress printing of the
(zeroed) transfer-buffer content in case of errors.
Signed-off-by: Johan Hovold <johan@kernel.org>
Diffstat (limited to 'drivers/usb/serial')
| -rw-r--r-- | drivers/usb/serial/kobil_sct.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/drivers/usb/serial/kobil_sct.c b/drivers/usb/serial/kobil_sct.c index a6ebed1e0f20..e9882ba20933 100644 --- a/drivers/usb/serial/kobil_sct.c +++ b/drivers/usb/serial/kobil_sct.c @@ -190,8 +190,10 @@ static int kobil_open(struct tty_struct *tty, struct usb_serial_port *port) KOBIL_TIMEOUT ); dev_dbg(dev, "%s - Send get_HW_version URB returns: %i\n", __func__, result); - dev_dbg(dev, "Hardware version: %i.%i.%i\n", transfer_buffer[0], - transfer_buffer[1], transfer_buffer[2]); + if (result >= 3) { + dev_dbg(dev, "Hardware version: %i.%i.%i\n", transfer_buffer[0], + transfer_buffer[1], transfer_buffer[2]); + } /* get firmware version */ result = usb_control_msg(port->serial->dev, @@ -205,8 +207,10 @@ static int kobil_open(struct tty_struct *tty, struct usb_serial_port *port) KOBIL_TIMEOUT ); dev_dbg(dev, "%s - Send get_FW_version URB returns: %i\n", __func__, result); - dev_dbg(dev, "Firmware version: %i.%i.%i\n", transfer_buffer[0], - transfer_buffer[1], transfer_buffer[2]); + if (result >= 3) { + dev_dbg(dev, "Firmware version: %i.%i.%i\n", transfer_buffer[0], + transfer_buffer[1], transfer_buffer[2]); + } if (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID || priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID) { |