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author | Al Viro <viro@zeniv.linux.org.uk> | 2018-09-12 06:33:40 +0300 |
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committer | Al Viro <viro@zeniv.linux.org.uk> | 2018-10-13 07:50:34 +0300 |
commit | 99f75a1fcd865d39b5f2b99ce067bf5a2259e03a (patch) | |
tree | 630fcf6da19fd78d901ff04974a7044d1420544e /drivers/usb/class/cdc-acm.c | |
parent | 81732b26e05994552f347746eb11762e986079a0 (diff) | |
download | linux-99f75a1fcd865d39b5f2b99ce067bf5a2259e03a.tar.xz |
cdc-acm: switch to ->[sg]et_serial()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'drivers/usb/class/cdc-acm.c')
-rw-r--r-- | drivers/usb/class/cdc-acm.c | 41 |
1 files changed, 14 insertions, 27 deletions
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c index 27346d69f393..5fd59a58de92 100644 --- a/drivers/usb/class/cdc-acm.c +++ b/drivers/usb/class/cdc-acm.c @@ -956,37 +956,28 @@ static int acm_tty_tiocmset(struct tty_struct *tty, return acm_set_control(acm, acm->ctrlout = newctrl); } -static int get_serial_info(struct acm *acm, struct serial_struct __user *info) +static int get_serial_info(struct tty_struct *tty, struct serial_struct *ss) { - struct serial_struct tmp; + struct acm *acm = tty->driver_data; - memset(&tmp, 0, sizeof(tmp)); - tmp.xmit_fifo_size = acm->writesize; - tmp.baud_base = le32_to_cpu(acm->line.dwDTERate); - tmp.close_delay = acm->port.close_delay / 10; - tmp.closing_wait = acm->port.closing_wait == ASYNC_CLOSING_WAIT_NONE ? + ss->xmit_fifo_size = acm->writesize; + ss->baud_base = le32_to_cpu(acm->line.dwDTERate); + ss->close_delay = acm->port.close_delay / 10; + ss->closing_wait = acm->port.closing_wait == ASYNC_CLOSING_WAIT_NONE ? ASYNC_CLOSING_WAIT_NONE : acm->port.closing_wait / 10; - - if (copy_to_user(info, &tmp, sizeof(tmp))) - return -EFAULT; - else - return 0; + return 0; } -static int set_serial_info(struct acm *acm, - struct serial_struct __user *newinfo) +static int set_serial_info(struct tty_struct *tty, struct serial_struct *ss) { - struct serial_struct new_serial; + struct acm *acm = tty->driver_data; unsigned int closing_wait, close_delay; int retval = 0; - if (copy_from_user(&new_serial, newinfo, sizeof(new_serial))) - return -EFAULT; - - close_delay = new_serial.close_delay * 10; - closing_wait = new_serial.closing_wait == ASYNC_CLOSING_WAIT_NONE ? - ASYNC_CLOSING_WAIT_NONE : new_serial.closing_wait * 10; + close_delay = ss->close_delay * 10; + closing_wait = ss->closing_wait == ASYNC_CLOSING_WAIT_NONE ? + ASYNC_CLOSING_WAIT_NONE : ss->closing_wait * 10; mutex_lock(&acm->port.mutex); @@ -1071,12 +1062,6 @@ static int acm_tty_ioctl(struct tty_struct *tty, int rv = -ENOIOCTLCMD; switch (cmd) { - case TIOCGSERIAL: /* gets serial port data */ - rv = get_serial_info(acm, (struct serial_struct __user *) arg); - break; - case TIOCSSERIAL: - rv = set_serial_info(acm, (struct serial_struct __user *) arg); - break; case TIOCMIWAIT: rv = usb_autopm_get_interface(acm->control); if (rv < 0) { @@ -1998,6 +1983,8 @@ static const struct tty_operations acm_ops = { .set_termios = acm_tty_set_termios, .tiocmget = acm_tty_tiocmget, .tiocmset = acm_tty_tiocmset, + .get_serial = get_serial_info, + .set_serial = set_serial_info, .get_icount = acm_tty_get_icount, }; |