diff options
| author | Takashi Iwai <tiwai@suse.de> | 2009-12-01 15:58:15 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2009-12-01 15:58:15 +0100 |
| commit | b00615d163cd24fa98d155acfc1f9d81d6fe1103 (patch) | |
| tree | dde815788aaea3e336aaaf24763311ce63a22e1b /drivers/usb/class/cdc-acm.c | |
| parent | 75639e7ee1401b3876c7a00ffe96ea8027668690 (diff) | |
| parent | d6797322231af98b9bb4afb175dd614cf511e5f7 (diff) | |
Merge branch 'topic/pcm-dma-fix' into topic/core-change
Diffstat (limited to 'drivers/usb/class/cdc-acm.c')
| -rw-r--r-- | drivers/usb/class/cdc-acm.c | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c index e3861b21e776..e4eca7810bcf 100644 --- a/drivers/usb/class/cdc-acm.c +++ b/drivers/usb/class/cdc-acm.c @@ -609,9 +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: @@ -686,15 +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, |