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authorJohan Hovold <jhovold@gmail.com>2011-03-22 11:12:20 +0100
committerGreg Kroah-Hartman <gregkh@suse.de>2011-04-13 16:18:30 -0700
commit6fb6b8846458afb7b5689f86cf35705c40eb70e5 (patch)
tree3f1ac0d7be1f927849154ec19d7fe21bedf44951
parent3a42610812c55e8a60e2660e01c6cb6eb01d4171 (diff)
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USB: cdc-acm: remove unused drain-delay code
The drain-delay code is no longer used, so remove it. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
-rw-r--r--drivers/usb/class/cdc-acm.c6
-rw-r--r--drivers/usb/class/cdc-acm.h1
2 files changed, 0 insertions, 7 deletions
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index b84ccec8fc7b..e0f9febee7e6 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -50,9 +50,6 @@
#include "cdc-acm.h"
-#define ACM_CLOSE_TIMEOUT 15 /* seconds to let writes drain */
-
-
#define DRIVER_AUTHOR "Armin Fuerst, Pavel Machek, Johannes Erdfelt, Vojtech Pavlik, David Kubicek"
#define DRIVER_DESC "USB Abstract Control Model driver for USB modems and ISDN adapters"
@@ -507,8 +504,6 @@ static void acm_write_bulk(struct urb *urb)
spin_unlock_irqrestore(&acm->write_lock, flags);
if (ACM_READY(acm))
schedule_work(&acm->work);
- else
- wake_up_interruptible(&acm->drain_wait);
}
static void acm_softint(struct work_struct *work)
@@ -1155,7 +1150,6 @@ made_compressed_probe:
acm->urb_task.func = acm_rx_tasklet;
acm->urb_task.data = (unsigned long) acm;
INIT_WORK(&acm->work, acm_softint);
- init_waitqueue_head(&acm->drain_wait);
spin_lock_init(&acm->throttle_lock);
spin_lock_init(&acm->write_lock);
spin_lock_init(&acm->read_lock);
diff --git a/drivers/usb/class/cdc-acm.h b/drivers/usb/class/cdc-acm.h
index b4ea54dbf323..7282d1f4912b 100644
--- a/drivers/usb/class/cdc-acm.h
+++ b/drivers/usb/class/cdc-acm.h
@@ -112,7 +112,6 @@ struct acm {
struct mutex mutex;
struct usb_cdc_line_coding line; /* bits, stop, parity */
struct work_struct work; /* work queue entry for line discipline waking up */
- wait_queue_head_t drain_wait; /* close processing */
struct tasklet_struct urb_task; /* rx processing */
spinlock_t throttle_lock; /* synchronize throtteling and read callback */
unsigned int ctrlin; /* input control lines (DCD, DSR, RI, break, overruns) */