diff options
author | Alex Shi <alex.shi@linaro.org> | 2017-05-31 12:02:43 +0800 |
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committer | Alex Shi <alex.shi@linaro.org> | 2017-05-31 12:02:43 +0800 |
commit | a898540914d4136f29bc738ce593c1c501006f23 (patch) | |
tree | 9440b7f76c029143611c89ed919718ba6ff353f4 /drivers/usb/serial/digi_acceleport.c | |
parent | d97f745e1d2fea4d2f308e5e06eee81a9a84f3f5 (diff) | |
parent | 56d847e3ef9433d7ac92376e4ba49d3cf3cb70d2 (diff) |
Merge tag 'v4.1.40' into linux-linaro-lsk-v4.1lsk-v4.1-17.06lsk-v4.1-17.05linux-linaro-lsk-v4.1
This is the 4.1.40 stable release
Diffstat (limited to 'drivers/usb/serial/digi_acceleport.c')
-rw-r--r-- | drivers/usb/serial/digi_acceleport.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/drivers/usb/serial/digi_acceleport.c b/drivers/usb/serial/digi_acceleport.c index 3df7b7ec178e..e0b1fe2f60e1 100644 --- a/drivers/usb/serial/digi_acceleport.c +++ b/drivers/usb/serial/digi_acceleport.c @@ -1483,16 +1483,20 @@ static int digi_read_oob_callback(struct urb *urb) struct usb_serial *serial = port->serial; struct tty_struct *tty; struct digi_port *priv = usb_get_serial_port_data(port); + unsigned char *buf = urb->transfer_buffer; int opcode, line, status, val; int i; unsigned int rts; + if (urb->actual_length < 4) + return -1; + /* handle each oob command */ - for (i = 0; i < urb->actual_length - 3;) { - opcode = ((unsigned char *)urb->transfer_buffer)[i++]; - line = ((unsigned char *)urb->transfer_buffer)[i++]; - status = ((unsigned char *)urb->transfer_buffer)[i++]; - val = ((unsigned char *)urb->transfer_buffer)[i++]; + for (i = 0; i < urb->actual_length - 3; i += 4) { + opcode = buf[i]; + line = buf[i + 1]; + status = buf[i + 2]; + val = buf[i + 3]; dev_dbg(&port->dev, "digi_read_oob_callback: opcode=%d, line=%d, status=%d, val=%d\n", opcode, line, status, val); |