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usbmon: Smooth the core code 

Two things:
 - mbus can be NULL (in case of bus removal while reader is reading)
 - Remove a useless assignment

Signed-off-by: Pete Zaitcev <zaitcev@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Pete Zaitcev 2007-08-14 00:42:53 -07:00 committed by Greg Kroah-Hartman
parent cdd5a8fd24
commit c36d54ab38
1 changed files with 3 additions and 13 deletions
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16
drivers/usb/mon/mon_main.c
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@ -148,18 +148,8 @@ static void mon_complete(struct usb_bus *ubus, struct urb *urb)
{
struct mon_bus *mbus;
mbus = ubus->mon_bus;
if (mbus == NULL) {
/*
* This should not happen.
* At this point we do not even know the bus number...
*/
printk(KERN_ERR TAG ": Null mon bus in URB, address %p\n",
urb);
return;
}
mon_bus_complete(mbus, urb);
if ((mbus = ubus->mon_bus) != NULL)
mon_bus_complete(mbus, urb);
mon_bus_complete(&mon_bus0, urb);
}
@ -170,7 +160,7 @@ static void mon_complete(struct usb_bus *ubus, struct urb *urb)
*/
static void mon_stop(struct mon_bus *mbus)
{
struct usb_bus *ubus = mbus->u_bus;
struct usb_bus *ubus;
struct list_head *p;
if (mbus == &mon_bus0) {