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| author |   Alan Stern <stern@rowland.harvard.edu> | 2008-12-19 10:27:56 -0500 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@suse.de> | 2009-01-07 10:00:12 -0800 |
| commit | df718962bf91c7bd345060aadaa24b03f6140b07 (patch) | |
| tree | cfae38a59ccb944a2af3ef39a14d4d854cba64a3 /drivers/usb/core/usb.c | |
| parent | USB: automatically enable wakeup for PCI host controllers (diff) | |
| download | wireguard-linux-df718962bf91c7bd345060aadaa24b03f6140b07.tar.xz wireguard-linux-df718962bf91c7bd345060aadaa24b03f6140b07.zip | |
USB: cancel pending Set-Config requests if userspace gets there first
This patch (as1195) eliminates a potential problem identified by
Oliver Neukum. When a driver queues an asynchronous Set-Config
request using usb_driver_set_configuration(), the request should be
cancelled if userspace changes the configuration first. The patch
introduces a linked list of pending async Set-Config requests, and
uses it to invalidate the requests for a particular device whenever
that device's configuration is set.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Cc: Oliver Neukum <oliver@neukum.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/core/usb.c')
0 files changed, 0 insertions, 0 deletions