diff options
Diffstat (limited to 'drivers/usb/class')
| -rw-r--r-- | drivers/usb/class/cdc-acm.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c index e0f9febee7e..2d8d6b83823 100644 --- a/drivers/usb/class/cdc-acm.c +++ b/drivers/usb/class/cdc-acm.c @@ -606,16 +606,15 @@ early_bail: static void acm_tty_unregister(struct acm *acm) { - int i, nr; + int i; - nr = acm->rx_buflimit; tty_unregister_device(acm_tty_driver, acm->minor); usb_put_intf(acm->control); acm_table[acm->minor] = NULL; usb_free_urb(acm->ctrlurb); for (i = 0; i < ACM_NW; i++) usb_free_urb(acm->wb[i].urb); - for (i = 0; i < nr; i++) + for (i = 0; i < acm->rx_buflimit; i++) usb_free_urb(acm->ru[i].urb); kfree(acm->country_codes); kfree(acm); @@ -623,7 +622,8 @@ static void acm_tty_unregister(struct acm *acm) static void acm_port_down(struct acm *acm) { - int i, nr = acm->rx_buflimit; + int i; + mutex_lock(&open_mutex); if (acm->dev) { usb_autopm_get_interface(acm->control); @@ -632,7 +632,7 @@ static void acm_port_down(struct acm *acm) for (i = 0; i < ACM_NW; i++) usb_kill_urb(acm->wb[i].urb); tasklet_disable(&acm->urb_task); - for (i = 0; i < nr; i++) + for (i = 0; i < acm->rx_buflimit; i++) usb_kill_urb(acm->ru[i].urb); tasklet_enable(&acm->urb_task); acm->control->needs_remote_wakeup = 0; @@ -882,9 +882,9 @@ static void acm_write_buffers_free(struct acm *acm) static void acm_read_buffers_free(struct acm *acm) { struct usb_device *usb_dev = interface_to_usbdev(acm->control); - int i, n = acm->rx_buflimit; + int i; - for (i = 0; i < n; i++) + for (i = 0; i < acm->rx_buflimit; i++) usb_free_coherent(usb_dev, acm->readsize, acm->rb[i].base, acm->rb[i].dma); } |