| commit | df718962bf91c7bd345060aadaa24b03f6140b07 | |
| author | Alan Stern <stern@rowland.harvard.edu> | |
| Fri, 19 Dec 2008 15:27:56 +0000 (19 10:27 -0500) | ||
| committer | Greg Kroah-Hartman <gregkh@suse.de> | |
| Wed, 7 Jan 2009 18:00:12 +0000 (7 10:00 -0800) | ||
| tree | cfae38a59ccb944a2af3ef39a14d4d854cba64a3 | treesnapshot (tar.gz zip) |
| parent | 6fd9086a518d4f14213a32fe6c9ac17fabebbc1e | commitdiff |
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>
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>
| drivers/usb/core/message.c | diffblobblamehistory |