[   89.797543] BUG: unable to handle kernel NULL pointer dereference at   (null)
[   89.800040] IP: [<c12fecdf>] strchr+0xf/0x30
[   89.800040] *pdpt = 0000000002286001 *pde = 0000000000000000
[   89.800040] Oops: 0000 [#1] SMP
[   89.800040] Modules linked in: savage drm cfg80211 snd_maestro3 snd_ac97_codec ac97_bus snd_pcm snd_page_alloc snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq rfcomm bnep bluetooth snd_seq_device snd_timer snd dm_multipath joydev scsi_dh soundcore serio_raw binfmt_misc i2c_piix4 yenta_socket shpchp pcmcia_rsrc parport_pc ppdev mac_hid hostap_cs hostap lib80211 pcmcia pcmcia_core lp parport dm_mirror dm_region_hash dm_log psmouse tulip floppy
[   89.800040] CPU: 0 PID: 507 Comm: pccardd Not tainted 3.13.0-45-generic #74-Ubuntu
[   89.800040] Hardware name: Hewlett-Packard HP OmniBook PC         /N/A, BIOS  GC.M1.63 01/01/1992
[   89.800040] task: c9a2b400 ti: ca67e000 task.ti: ca67e000
[   89.800040] EIP: 0060:[<c12fecdf>] EFLAGS: 00010282 CPU: 0
[   89.800040] EIP is at strchr+0xf/0x30
[   89.800040] EAX: 00002f2f EBX: cab86de0 ECX: ca67fdd4 EDX: 0000002f
[   89.800040] ESI: 00000000 EDI: 00000000 EBP: ca67fd94 ESP: ca67fd90
[   89.800040]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
[   89.800040] CR0: 8005003b CR2: 00000000 CR3: 02289000 CR4: 000007f0
[   89.800040] Stack:
[   89.800040]  cfa9e5e4 ca67fdc4 c11d2971 ca67fda8 c11d3054 cee41240 ca67fdec ca67fdd4
[   89.800040]  ca67fdd0 00000000 00000000 cfa9e5e4 cfa9e600 ca67fde4 c11d340d d0b094af
[   89.800040]  cab86de0 00000000 cfa9e600 cfa9e5e4 cfa9e600 ca67fdec d0b5f0f6 ca67fe04
[   89.800040] Call Trace:
[   89.800040]  [<c11d2971>] __xlate_proc_name+0x31/0xc0
[   89.800040]  [<c11d3054>] ? pde_put+0x34/0x50
[   89.800040]  [<c11d340d>] remove_proc_subtree+0x2d/0x140
[   89.800040]  [<d0b5f0f6>] hostap_remove_proc+0x16/0x20 [hostap]
[   89.800040]  [<d0b0241c>] prism2_detach+0x12c/0x220 [hostap_cs]
[   89.800040]  [<d0af2687>] pcmcia_device_remove+0x57/0x130 [pcmcia]
[   89.800040]  [<c140ef01>] __device_release_driver+0x61/0xc0
[   89.800040]  [<c140ef7d>] device_release_driver+0x1d/0x30
[   89.800040]  [<c140e8f3>] bus_remove_device+0xc3/0x130
[   89.800040]  [<c140b213>] ? device_remove_attrs+0x43/0x70
[   89.800040]  [<c140bc6c>] device_del+0xec/0x170
[   89.800040]  [<c140bd11>] device_unregister+0x21/0x60
[   89.800040]  [<c165a650>] ? mutex_lock+0x10/0x28
[   89.800040]  [<d0af25a4>] pcmcia_card_remove+0xb4/0x140 [pcmcia]
[   89.800040]  [<d0af316d>] pcmcia_bus_remove+0x1d/0x50 [pcmcia]
[   89.800040]  [<d0a947de>] socket_shutdown+0x2e/0x120 [pcmcia_core]
[   89.800040]  [<c140becb>] ? dev_printk+0x2b/0x30
[   89.800040]  [<d0a94b3d>] socket_remove+0x3d/0x50 [pcmcia_core]
[   89.800040]  [<d0a95249>] pccardd+0x259/0x3d0 [pcmcia_core]
[   89.800040]  [<d0a94ff0>] ? pcmcia_socket_uevent+0x40/0x40 [pcmcia_core]
[   89.800040]  [<c10751d1>] kthread+0xa1/0xc0
[   89.800040]  [<c1663b37>] ret_from_kernel_thread+0x1b/0x28
[   89.800040]  [<c1075130>] ? kthread_create_on_node+0x140/0x140
[   89.800040] Code: 08 84 c0 75 f5 31 c0 eb 04 19 c0 0c 01 5e 5f 5d c3 8d 74 26 00 8d bc 27 00 00 00 00 55 89 e5 56 3e 8d 74 26 00 89 c6 89 d0 88 c4 <ac> 38 e0 74 09 84 c0 75 f7 be 01 00 00 00 89 f0 48 5e 5d c3 8d
[   89.800040] EIP: [<c12fecdf>] strchr+0xf/0x30 SS:ESP 0068:ca67fd90
[   89.800040] CR2: 0000000000000000
[   89.800040] ---[ end trace 0f06f5ba5ab5f446 ]---