usb: hub: rename khubd to hub_wq in documentation and comments

USB hub has started to use a workqueue instead of kthread. Let's update
the documentation and comments here and there.

This patch mostly just replaces "khubd" with "hub_wq". There are only few
exceptions where the whole sentence was updated. These more complicated
changes can be found in the following files:

	   Documentation/usb/hotplug.txt
	   drivers/net/usb/usbnet.c
	   drivers/usb/core/hcd.c
	   drivers/usb/host/ohci-hcd.c
	   drivers/usb/host/xhci.c

Signed-off-by: Petr Mladek <pmladek@suse.cz>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2 files changed, 2 insertions, 2 deletions

diff --git a/drivers/usb/phy/phy-fsl-usb.c b/drivers/usb/phy/phy-fsl-usb.c
index 2b0f968d9325..f1ea5990a50a 100644
--- a/drivers/usb/phy/phy-fsl-usb.c
+++ b/drivers/usb/phy/phy-fsl-usb.c
@@ -609,7 +609,7 @@ static int fsl_otg_set_host(struct usb_otg *otg, struct usb_bus *host)
                 otg->host->otg_port = fsl_otg_initdata.otg_port;
                 otg->host->is_b_host = otg_dev->fsm.id;
                 /*
-                 * must leave time for khubd to finish its thing
+                 * must leave time for hub_wq to finish its thing
                  * before yanking the host driver out from under it,
                  * so suspend the host after a short delay.
                  */
diff --git a/drivers/usb/phy/phy-isp1301-omap.c b/drivers/usb/phy/phy-isp1301-omap.c
index 69e49be8866b..8eea56d3ded6 100644
--- a/drivers/usb/phy/phy-isp1301-omap.c
+++ b/drivers/usb/phy/phy-isp1301-omap.c
@@ -1011,7 +1011,7 @@ static void isp_update_otg(struct isp1301 *isp, u8 stat)
                                 break;
                         case OTG_STATE_A_WAIT_VFALL:
                                 state = OTG_STATE_A_IDLE;
-                                /* khubd may take a while to notice and
+                                /* hub_wq may take a while to notice and
                                  * handle this disconnect, so don't go
                                  * to B_IDLE quite yet.
                                  */