diff options
Diffstat (limited to 'drivers/usb/class/cdc-acm.c')
| -rw-r--r-- | drivers/usb/class/cdc-acm.c | 25 |
1 files changed, 15 insertions, 10 deletions
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c index 2bfc41ece0e1..e4eca7810bcf 100644 --- a/drivers/usb/class/cdc-acm.c +++ b/drivers/usb/class/cdc-acm.c @@ -59,6 +59,7 @@ #include <linux/init.h> #include <linux/slab.h> #include <linux/tty.h> +#include <linux/serial.h> #include <linux/tty_driver.h> #include <linux/tty_flip.h> #include <linux/module.h> @@ -608,8 +609,9 @@ static int acm_tty_open(struct tty_struct *tty, struct file *filp) acm->throttle = 0; - tasklet_schedule(&acm->urb_task); + set_bit(ASYNCB_INITIALIZED, &acm->port.flags); rv = tty_port_block_til_ready(&acm->port, tty, filp); + tasklet_schedule(&acm->urb_task); done: mutex_unlock(&acm->mutex); err_out: @@ -684,15 +686,21 @@ static void acm_tty_close(struct tty_struct *tty, struct file *filp) /* Perform the closing process and see if we need to do the hardware shutdown */ - if (!acm || tty_port_close_start(&acm->port, tty, filp) == 0) + if (!acm) + return; + if (tty_port_close_start(&acm->port, tty, filp) == 0) { + mutex_lock(&open_mutex); + if (!acm->dev) { + tty_port_tty_set(&acm->port, NULL); + acm_tty_unregister(acm); + tty->driver_data = NULL; + } + mutex_unlock(&open_mutex); return; + } acm_port_down(acm, 0); tty_port_close_end(&acm->port, tty); - mutex_lock(&open_mutex); tty_port_tty_set(&acm->port, NULL); - if (!acm->dev) - acm_tty_unregister(acm); - mutex_unlock(&open_mutex); } static int acm_tty_write(struct tty_struct *tty, @@ -858,10 +866,7 @@ static void acm_tty_set_termios(struct tty_struct *tty, if (!ACM_READY(acm)) return; - /* FIXME: Needs to support the tty_baud interface */ - /* FIXME: Broken on sparc */ - newline.dwDTERate = cpu_to_le32p(acm_tty_speed + - (termios->c_cflag & CBAUD & ~CBAUDEX) + (termios->c_cflag & CBAUDEX ? 15 : 0)); + newline.dwDTERate = cpu_to_le32(tty_get_baud_rate(tty)); newline.bCharFormat = termios->c_cflag & CSTOPB ? 2 : 0; newline.bParityType = termios->c_cflag & PARENB ? (termios->c_cflag & PARODD ? 1 : 2) + |