From 37c95bfe944babae817bfcf02c996729c9a3335d Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Fri, 24 Dec 2010 16:14:20 +0100 Subject: speedtch: don't abuse struct delayed_work speedtch directly uses the internal timer and work members of a struct delayed_work. Use a separate work item and timer instead. * Nicolas Kaiser discovered that timer init was missing. Fixed. Signed-off-by: Tejun Heo Acked-by: Greg Kroah-Hartman Tested-by: Nicolas Kaiser Cc: Duncan Sands Cc: linux-usb@vger.kernel.org --- drivers/usb/atm/speedtch.c | 26 ++++++++++++++------------ 1 file changed, 14 insertions(+), 12 deletions(-) diff --git a/drivers/usb/atm/speedtch.c b/drivers/usb/atm/speedtch.c index 4716e707de5..9046eba112a 100644 --- a/drivers/usb/atm/speedtch.c +++ b/drivers/usb/atm/speedtch.c @@ -139,7 +139,8 @@ struct speedtch_instance_data { struct speedtch_params params; /* set in probe, constant afterwards */ - struct delayed_work status_checker; + struct timer_list status_check_timer; + struct work_struct status_check_work; unsigned char last_status; @@ -498,7 +499,7 @@ static void speedtch_check_status(struct work_struct *work) { struct speedtch_instance_data *instance = container_of(work, struct speedtch_instance_data, - status_checker.work); + status_check_work); struct usbatm_data *usbatm = instance->usbatm; struct atm_dev *atm_dev = usbatm->atm_dev; unsigned char *buf = instance->scratch_buffer; @@ -575,11 +576,11 @@ static void speedtch_status_poll(unsigned long data) { struct speedtch_instance_data *instance = (void *)data; - schedule_delayed_work(&instance->status_checker, 0); + schedule_work(&instance->status_check_work); /* The following check is racy, but the race is harmless */ if (instance->poll_delay < MAX_POLL_DELAY) - mod_timer(&instance->status_checker.timer, jiffies + msecs_to_jiffies(instance->poll_delay)); + mod_timer(&instance->status_check_timer, jiffies + msecs_to_jiffies(instance->poll_delay)); else atm_warn(instance->usbatm, "Too many failures - disabling line status polling\n"); } @@ -595,7 +596,7 @@ static void speedtch_resubmit_int(unsigned long data) if (int_urb) { ret = usb_submit_urb(int_urb, GFP_ATOMIC); if (!ret) - schedule_delayed_work(&instance->status_checker, 0); + schedule_work(&instance->status_check_work); else { atm_dbg(instance->usbatm, "%s: usb_submit_urb failed with result %d\n", __func__, ret); mod_timer(&instance->resubmit_timer, jiffies + msecs_to_jiffies(RESUBMIT_DELAY)); @@ -624,7 +625,7 @@ static void speedtch_handle_int(struct urb *int_urb) } if ((count == 6) && !memcmp(up_int, instance->int_data, 6)) { - del_timer(&instance->status_checker.timer); + del_timer(&instance->status_check_timer); atm_info(usbatm, "DSL line goes up\n"); } else if ((count == 6) && !memcmp(down_int, instance->int_data, 6)) { atm_info(usbatm, "DSL line goes down\n"); @@ -640,7 +641,7 @@ static void speedtch_handle_int(struct urb *int_urb) if ((int_urb = instance->int_urb)) { ret = usb_submit_urb(int_urb, GFP_ATOMIC); - schedule_delayed_work(&instance->status_checker, 0); + schedule_work(&instance->status_check_work); if (ret < 0) { atm_dbg(usbatm, "%s: usb_submit_urb failed with result %d\n", __func__, ret); goto fail; @@ -686,7 +687,7 @@ static int speedtch_atm_start(struct usbatm_data *usbatm, struct atm_dev *atm_de } /* Start status polling */ - mod_timer(&instance->status_checker.timer, jiffies + msecs_to_jiffies(1000)); + mod_timer(&instance->status_check_timer, jiffies + msecs_to_jiffies(1000)); return 0; } @@ -698,7 +699,7 @@ static void speedtch_atm_stop(struct usbatm_data *usbatm, struct atm_dev *atm_de atm_dbg(usbatm, "%s entered\n", __func__); - del_timer_sync(&instance->status_checker.timer); + del_timer_sync(&instance->status_check_timer); /* * Since resubmit_timer and int_urb can schedule themselves and @@ -869,10 +870,11 @@ static int speedtch_bind(struct usbatm_data *usbatm, usbatm->flags |= (use_isoc ? UDSL_USE_ISOC : 0); - INIT_DELAYED_WORK(&instance->status_checker, speedtch_check_status); + INIT_WORK(&instance->status_check_work, speedtch_check_status); + init_timer(&instance->status_check_timer); - instance->status_checker.timer.function = speedtch_status_poll; - instance->status_checker.timer.data = (unsigned long)instance; + instance->status_check_timer.function = speedtch_status_poll; + instance->status_check_timer.data = (unsigned long)instance; instance->last_status = 0xff; instance->poll_delay = MIN_POLL_DELAY; -- cgit v1.2.3-70-g09d2