NFC: Use dynamic initialization for rwlocks
authorSzymon Janc <szymon.janc@tieto.com>
Tue, 25 Sep 2012 10:42:50 +0000 (12:42 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Mon, 26 Nov 2012 20:14:21 +0000 (12:14 -0800)
commitcc0e742a68460884c8e3bc982a15801b4f2bde54
treec01ca177e3c23e5391780f931f683a970c33d5ee
parent38efab61680204d6f7cedfbacdc211ab1cfe0806
NFC: Use dynamic initialization for rwlocks

commit fe235b58d517d623bf6d40c77afca1b0ee6fc85d upstream.

If rwlock is dynamically allocated but statically initialized it is
missing proper lockdep annotation.

INFO: trying to register non-static key.
the code is fine but needs lockdep annotation.
turning off the locking correctness validator.
Pid: 3352, comm: neard Not tainted 3.5.0-999-nfc+ #2
Call Trace:
[<ffffffff810c8526>] __lock_acquire+0x8f6/0x1bf0
[<ffffffff81739045>] ? printk+0x4d/0x4f
[<ffffffff810c9eed>] lock_acquire+0x9d/0x220
[<ffffffff81702bfe>] ? nfc_llcp_sock_from_sn+0x4e/0x160
[<ffffffff81746724>] _raw_read_lock+0x44/0x60
[<ffffffff81702bfe>] ? nfc_llcp_sock_from_sn+0x4e/0x160
[<ffffffff81702bfe>] nfc_llcp_sock_from_sn+0x4e/0x160
[<ffffffff817034a7>] nfc_llcp_get_sdp_ssap+0xa7/0x1b0
[<ffffffff81706353>] llcp_sock_bind+0x173/0x210
[<ffffffff815d9c94>] sys_bind+0xe4/0x100
[<ffffffff8139209e>] ? trace_hardirqs_on_thunk+0x3a/0x3f
[<ffffffff8174ea69>] system_call_fastpath+0x16/0x1b

Signed-off-by: Szymon Janc <szymon.janc@tieto.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
net/nfc/llcp/llcp.c