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| author | Alan Stern <stern@rowland.harvard.edu> | 2011-07-01 16:43:02 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-07-01 14:20:39 -0700 |
| commit | e534c5b831c8b8e9f5edee5c8a37753c808b80dc (patch) | |
| tree | 39e00c08e593edcbaeaa54a3288158a622be9e70 /Documentation | |
| parent | 3140d5b2664309253ba465a14c89fe4f59c0359b (diff) | |
| download | kernel_samsung_smdk4412-e534c5b831c8b8e9f5edee5c8a37753c808b80dc.zip kernel_samsung_smdk4412-e534c5b831c8b8e9f5edee5c8a37753c808b80dc.tar.gz kernel_samsung_smdk4412-e534c5b831c8b8e9f5edee5c8a37753c808b80dc.tar.bz2 | |
USB: fix regression occurring during device removal
This patch (as1476) fixes a regression introduced by
fccf4e86200b8f5edd9a65da26f150e32ba79808 (USB: Free bandwidth when
usb_disable_device is called). usb_disconnect() grabs the
bandwidth_mutex before calling usb_disable_device(), which calls down
indirectly to usb_set_interface(), which tries to acquire the
bandwidth_mutex.
The fix causes usb_set_interface() to return early when it is called
for an interface that has already been unregistered, which is what
happens in usb_disable_device().
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Tested-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'Documentation')
0 files changed, 0 insertions, 0 deletions