Additional info:
reporter:       libreport-2.3.0
WARNING: CPU: 0 PID: 6593 at drivers/gpu/drm/i915/intel_pm.c:6317 intel_display_power_put+0x14c/0x160 [i915]()
Modules linked in: ccm rfcomm 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 x86_pkg_temp_thermal arc4 coretemp vfat fat iwlmvm mac80211 uvcvideo snd_hda_codec_idt videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common videodev kvm crct10dif_pclmul media snd_hda_codec_generic snd_hda_codec_hdmi hid_multitouch crc32_pclmul snd_hda_intel hp_wmi iTCO_wdt crc32c_intel snd_hda_controller snd_hda_codec btusb sparse_keymap iTCO_vendor_support bluetooth ghash_clmulni_intel rtsx_pci_ms
 snd_hwdep snd_seq ie31200_edac iwlwifi hp_accel snd_seq_device lis3lv02d memstick input_polldev cfg80211 rfkill edac_core mei_me joydev serio_raw snd_pcm mei snd_timer snd shpchp lpc_ich i2c_i801 hp_wireless soundcore nouveau i915 rtsx_pci_sdmmc mmc_core mxm_wmi ttm i2c_algo_bit drm_kms_helper drm r8169 rtsx_pci mii mfd_core video wmi
CPU: 0 PID: 6593 Comm: kworker/0:2 Not tainted 3.17.4-301.fc21.x86_64 #1
Hardware name: Hewlett-Packard HP ENVY TS 17 Notebook PC/1968, BIOS F.64 07/30/2014
Workqueue: events edp_panel_vdd_work [i915]
 0000000000000000 00000000169d17f2 ffff88009854bd38 ffffffff8173f929
 0000000000000000 ffff88009854bd70 ffffffff810970ad ffff8803491b002c
 000000000000000b ffff8803491b8610 ffff88034acb0000 ffff8803491b0000
Call Trace:
 [<ffffffff8173f929>] dump_stack+0x45/0x56
 [<ffffffff810970ad>] warn_slowpath_common+0x7d/0xa0
 [<ffffffff810971da>] warn_slowpath_null+0x1a/0x20
 [<ffffffffa010733c>] intel_display_power_put+0x14c/0x160 [i915]
 [<ffffffffa0172974>] edp_panel_vdd_off_sync+0xf4/0x1e0 [i915]
 [<ffffffffa0172ac4>] edp_panel_vdd_work+0x34/0x50 [i915]
 [<ffffffff810af88d>] process_one_work+0x14d/0x400
 [<ffffffff810b021b>] worker_thread+0x6b/0x4a0
 [<ffffffff810b01b0>] ? rescuer_thread+0x2a0/0x2a0
 [<ffffffff810b52fa>] kthread+0xea/0x100
 [<ffffffff810b5210>] ? kthread_create_on_node+0x1a0/0x1a0
 [<ffffffff81746a3c>] ret_from_fork+0x7c/0xb0
 [<ffffffff810b5210>] ? kthread_create_on_node+0x1a0/0x1a0