1 files changed, 31 insertions, 25 deletions

diff --git a/drivers/usb/atm/ueagle-atm.c b/drivers/usb/atm/ueagle-atm.c
index ea071a5b6eee..e71521ce3010 100644
--- a/drivers/usb/atm/ueagle-atm.c
+++ b/drivers/usb/atm/ueagle-atm.c
@@ -168,7 +168,6 @@ struct uea_softc {
         union cmv_dsc cmv_dsc;
 
         struct work_struct task;
-        struct workqueue_struct *work_q;
         u16 pageno;
         u16 ovl;
 
@@ -1284,7 +1283,7 @@ static void uea_set_bulk_timeout(struct uea_softc *sc, u32 dsrate)
 
         /* in bulk mode the modem have problem with high rate
          * changing internal timing could improve things, but the
-         * value is misterious.
+         * value is mysterious.
          * ADI930 don't support it (-EPIPE error).
          */
 
@@ -1744,7 +1743,7 @@ static int uea_send_cmvs_e1(struct uea_softc *sc)
                                 goto out;
                 }
         } else {
-                /* This realy should not happen */
+                /* This really should not happen */
                 uea_err(INS_TO_USBDEV(sc), "bad cmvs version %d\n", ver);
                 goto out;
         }
@@ -1799,7 +1798,7 @@ static int uea_send_cmvs_e4(struct uea_softc *sc)
                                 goto out;
                 }
         } else {
-                /* This realy should not happen */
+                /* This really should not happen */
                 uea_err(INS_TO_USBDEV(sc), "bad cmvs version %d\n", ver);
                 goto out;
         }
@@ -1830,7 +1829,7 @@ static int uea_start_reset(struct uea_softc *sc)
 
         /* mask interrupt */
         sc->booting = 1;
-        /* We need to set this here because, a ack timeout could have occured,
+        /* We need to set this here because, a ack timeout could have occurred,
          * but before we start the reboot, the ack occurs and set this to 1.
          * So we will failed to wait Ready CMV.
          */
@@ -1879,7 +1878,7 @@ static int uea_start_reset(struct uea_softc *sc)
         /* start loading DSP */
         sc->pageno = 0;
         sc->ovl = 0;
-        queue_work(sc->work_q, &sc->task);
+        schedule_work(&sc->task);
 
         /* wait for modem ready CMV */
         ret = wait_cmv_ack(sc);
@@ -2091,14 +2090,14 @@ static void uea_schedule_load_page_e1(struct uea_softc *sc,
 {
         sc->pageno = intr->e1_bSwapPageNo;
         sc->ovl = intr->e1_bOvl >> 4 | intr->e1_bOvl << 4;
-        queue_work(sc->work_q, &sc->task);
+        schedule_work(&sc->task);
 }
 
 static void uea_schedule_load_page_e4(struct uea_softc *sc,
                                                 struct intr_pkt *intr)
 {
         sc->pageno = intr->e4_bSwapPageNo;
-        queue_work(sc->work_q, &sc->task);
+        schedule_work(&sc->task);
 }
 
 /*
@@ -2170,13 +2169,6 @@ static int uea_boot(struct uea_softc *sc)
 
         init_waitqueue_head(&sc->sync_q);
 
-        sc->work_q = create_workqueue("ueagle-dsp");
-        if (!sc->work_q) {
-                uea_err(INS_TO_USBDEV(sc), "cannot allocate workqueue\n");
-                uea_leaves(INS_TO_USBDEV(sc));
-                return -ENOMEM;
-        }
-
         if (UEA_CHIP_VERSION(sc) == ADI930)
                 load_XILINX_firmware(sc);
 
@@ -2206,8 +2198,11 @@ static int uea_boot(struct uea_softc *sc)
                 goto err1;
         }
 
-        sc->kthread = kthread_run(uea_kthread, sc, "ueagle-atm");
-        if (sc->kthread == ERR_PTR(-ENOMEM)) {
+        /* Create worker thread, but don't start it here.  Start it after
+         * all usbatm generic initialization is done.
+         */
+        sc->kthread = kthread_create(uea_kthread, sc, "ueagle-atm");
+        if (IS_ERR(sc->kthread)) {
                 uea_err(INS_TO_USBDEV(sc), "failed to create thread\n");
                 goto err2;
         }
@@ -2222,7 +2217,6 @@ err1:
         sc->urb_int = NULL;
         kfree(intr);
 err0:
-        destroy_workqueue(sc->work_q);
         uea_leaves(INS_TO_USBDEV(sc));
         return -ENOMEM;
 }
@@ -2243,8 +2237,8 @@ static void uea_stop(struct uea_softc *sc)
         kfree(sc->urb_int->transfer_buffer);
         usb_free_urb(sc->urb_int);
 
-        /* stop any pending boot process, when no one can schedule work */
-        destroy_workqueue(sc->work_q);
+        /* flush the work item, when no one can schedule it */
+        flush_work_sync(&sc->task);
 
         if (sc->dsp_firm)
                 release_firmware(sc->dsp_firm);
@@ -2301,7 +2295,7 @@ out:
         return ret;
 }
 
-static DEVICE_ATTR(stat_status, S_IWUGO | S_IRUGO, read_status, reboot);
+static DEVICE_ATTR(stat_status, S_IWUSR | S_IRUGO, read_status, reboot);
 
 static ssize_t read_human_status(struct device *dev,
                         struct device_attribute *attr, char *buf)
@@ -2364,8 +2358,7 @@ out:
         return ret;
 }
 
-static DEVICE_ATTR(stat_human_status, S_IWUGO | S_IRUGO,
-                                read_human_status, NULL);
+static DEVICE_ATTR(stat_human_status, S_IRUGO, read_human_status, NULL);
 
 static ssize_t read_delin(struct device *dev, struct device_attribute *attr,
                 char *buf)
@@ -2397,7 +2390,7 @@ out:
         return ret;
 }
 
-static DEVICE_ATTR(stat_delin, S_IWUGO | S_IRUGO, read_delin, NULL);
+static DEVICE_ATTR(stat_delin, S_IRUGO, read_delin, NULL);
 
 #define UEA_ATTR(name, reset)                                   \
                                                                 \
@@ -2625,6 +2618,7 @@ static struct usbatm_driver uea_usbatm_driver = {
 static int uea_probe(struct usb_interface *intf, const struct usb_device_id *id)
 {
         struct usb_device *usb = interface_to_usbdev(intf);
+        int ret;
 
         uea_enters(usb);
         uea_info(usb, "ADSL device founded vid (%#X) pid (%#X) Rev (%#X): %s\n",
@@ -2638,7 +2632,19 @@ static int uea_probe(struct usb_interface *intf, const struct usb_device_id *id)
         if (UEA_IS_PREFIRM(id))
                 return uea_load_firmware(usb, UEA_CHIP_VERSION(id));
 
-        return usbatm_usb_probe(intf, id, &uea_usbatm_driver);
+        ret = usbatm_usb_probe(intf, id, &uea_usbatm_driver);
+        if (ret == 0) {
+                struct usbatm_data *usbatm = usb_get_intfdata(intf);
+                struct uea_softc *sc = usbatm->driver_data;
+
+                /* Ensure carrier is initialized to off as early as possible */
+                UPDATE_ATM_SIGNAL(ATM_PHY_SIG_LOST);
+
+                /* Only start the worker thread when all init is done */
+                wake_up_process(sc->kthread);
+        }
+
+        return ret;
 }
 
 static void uea_disconnect(struct usb_interface *intf)