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| author |   Linus Torvalds <torvalds@linux-foundation.org> | 2011-07-07 15:10:33 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-07-07 15:10:33 -0700 |
| commit | 90c69064c903f0993c7268c49670ad1f32030942 (patch) | |
| tree | 08a25c4447079925e308acab0a41efa05fa5f4b3 /drivers | |
| parent | Merge branch 'pm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6 (diff) | |
| parent | USB: additional regression fix for device removal (diff) | |
| download | linux-dev-90c69064c903f0993c7268c49670ad1f32030942.tar.xz linux-dev-90c69064c903f0993c7268c49670ad1f32030942.zip | |
Merge branch 'usb-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6
* 'usb-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6:
USB: additional regression fix for device removal
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/usb/core/message.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c index e0719b4ee189..0b5ec234c787 100644 --- a/drivers/usb/core/message.c +++ b/drivers/usb/core/message.c @@ -1147,6 +1147,14 @@ void usb_disable_device(struct usb_device *dev, int skip_ep0) * any drivers bound to them (a key side effect) */ if (dev->actconfig) { + /* + * FIXME: In order to avoid self-deadlock involving the + * bandwidth_mutex, we have to mark all the interfaces + * before unregistering any of them. + */ + for (i = 0; i < dev->actconfig->desc.bNumInterfaces; i++) + dev->actconfig->interface[i]->unregistering = 1; + for (i = 0; i < dev->actconfig->desc.bNumInterfaces; i++) { struct usb_interface *interface; @@ -1156,7 +1164,6 @@ void usb_disable_device(struct usb_device *dev, int skip_ep0) continue; dev_dbg(&dev->dev, "unregistering interface %s\n", dev_name(&interface->dev)); - interface->unregistering = 1; remove_intf_ep_devs(interface); device_del(&interface->dev); } |