Description of problem:
1. Use a thinkpad T430 with external monitor
2. suspend

Additional info:
reporter:       libreport-2.2.3
WARNING: CPU: 3 PID: 3885 at drivers/base/firmware_class.c:1105 _request_firmware+0x4ed/0x780()
Modules linked in: fuse xt_CHECKSUM ipt_MASQUERADE nf_conntrack_netbios_ns nf_conntrack_broadcast ip6t_rpfilter ip6t_REJECT xt_conntrack ebtable_nat ebtable_broute bridge stp llc ebtable_filter ebtables ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_mangle ip6table_security ip6table_raw ip6table_filter ip6_tables iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_mangle iptable_security iptable_raw bnep dm_crypt arc4 iwldvm mac80211 snd_hda_codec_hdmi joydev btusb x86_pkg_temp_thermal iwlwifi coretemp bluetooth snd_hda_codec_realtek iTCO_wdt kvm_intel snd_hda_codec_generic iTCO_vendor_support uvcvideo kvm videobuf2_vmalloc videobuf2_memops snd_hda_intel videobuf2_core v4l2_common hid_lenovo_tpkbd videodev media crct10dif_pclmul crc32_pclmul[0B]
 snd_hda_controller crc32c_intel snd_hda_codec cfg80211 snd_hwdep ghash_clmulni_intel snd_seq snd_seq_device microcode snd_pcm sdhci_pci sdhci serio_raw mmc_core snd_timer lpc_ich mfd_core i2c_i801 mei_me wmi thinkpad_acpi mei snd tpm_tis rfkill tpm shpchp soundcore binfmt_misc i915 i2c_algo_bit drm_kms_helper drm e1000e i2c_core ptp pps_core video
CPU: 3 PID: 3885 Comm: kworker/u17:0 Not tainted 3.16.1-301.fc21.x86_64 #1
Hardware name: LENOVO 23445HU/23445HU, BIOS G1ET93WW (2.53 ) 03/08/2013
Workqueue: hci0 hci_power_on [bluetooth][03]
 0000000000000000 0000000068adf8bb ffff8802115cfbf8 ffffffff8171bb42
 0000000000000000 ffff8802115cfc30 ffffffff8108f25d ffff880036368180
 ffff8802115cfd10 ffff8801de685b00 0000000000000220 00000000fffffff5
Call Trace:
 [<ffffffff8171bb42>] dump_stack+0x45/0x56
 [<ffffffff8108f25d>] warn_slowpath_common+0x7d/0xa0
 [<ffffffff8108f38a>] warn_slowpath_null+0x1a/0x20
 [<ffffffff8149591d>] _request_firmware+0x4ed/0x780
 [<ffffffff81495be1>] request_firmware+0x31/0x50[03]
 [<ffffffffa0571943>] btusb_setup_bcm_patchram+0x83/0x450 [btusb]
 [<ffffffff8148d7d6>] ? rpm_idle+0xd6/0x2a0
 [<ffffffffa04d81b5>] hci_dev_do_open+0x235/0x930 [bluetooth]
 [<ffffffff810c0ed7>] ? check_preempt_curr+0x57/0x90
 [<ffffffffa04d8e90>] hci_power_on+0x40/0x180 [bluetooth]
 [<ffffffff810abb96>] process_one_work+0x176/0x470
 [<ffffffff810ac5ab>] worker_thread+0x6b/0x550
 [<ffffffff810ac540>] ? rescuer_thread+0x2e0/0x2e0
 [<ffffffff810b306a>] kthread+0xea/0x100[03]
 [<ffffffff810b2f80>] ? insert_kthread_work+0x40/0x40
 [<ffffffff8172293c>] ret_from_fork+0x7c/0xb0
 [<ffffffff810b2f80>] ? insert_kthread_work+0x40/0x40

Potential duplicate: bug 1133378