Bluetooth: Really fix registering hci with duplicate name
commit3df92b31b2b593c5a067634ef2c30e76b2b2548d
authorSasha Levin <levinsasha928@gmail.com>
Sun, 27 May 2012 20:36:56 +0000 (27 22:36 +0200)
committerJohan Hedberg <johan.hedberg@intel.com>
Tue, 5 Jun 2012 03:34:10 +0000 (5 06:34 +0300)
tree30baeaaebdb378376c122bd75da89894077fdb7b
parent6754e0df133b088aa97ae6f2d3fd5377e43d1fc6
Bluetooth: Really fix registering hci with duplicate name

Commit fc50744 ("Bluetooth: Fix registering hci with duplicate name") didn't
fully fix the duplicate naming issue with devices, and duplicate device names
could still be created:

[  142.484097] device: 'hci1': device_add
[...]
[  150.545263] device: 'hci1': device_add
[  150.550128] kobject: 'hci1' (ffff880014cc4e58): kobject_add_internal: parent: 'bluetooth', set: 'devices'
[  150.558979] ------------[ cut here ]------------
[  150.561438] WARNING: at fs/sysfs/dir.c:529 sysfs_add_one+0xb0/0xd0()
[  150.572974] Hardware name: Bochs
[  150.580502] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci1'
[  150.584444] Pid: 7563, comm: trinity-child1 Tainted: G        W    3.4.0-next-20120524-sasha #296
[...]

Instead of the weird logic and the attempt at keeping the device list sorted,
just use an IDA.

Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
net/bluetooth/hci_core.c