------------[ cut here ]------------ WARNING: at /build/buildd/linux-2.6.35/lib/kobject.c:595 kobject_put+0x49/0x50() Hardware name: HP 625 kobject: '(null)' (eb45b60f): is not initialized, yet kobject_put() is being called. Modules linked in: ipmi_si(+) ibmaem ibmpex l2cap ipmi_msghandler snd_hda_codec_idt snd_hda_intel(+) snd_hda_codec snd_hwdep snd_pcm snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq lib80211_crypt_tkip snd_timer snd_seq_device btusb uvcvideo hp_wmi bluetooth videodev joydev v4l1_compat wl(P) snd lib80211 psmouse i2c_piix4 serio_raw soundcore snd_page_alloc k10temp shpchp lp parport usbhid hid radeon ttm drm_kms_helper usb_storage drm ahci video output r8169 libahci agpgart i2c_algo_bit mii Pid: 1261, comm: modprobe Tainted: P 2.6.35-19-generic #28-Ubuntu Call Trace: [] warn_slowpath_common+0x72/0xa0 [] ? kobject_put+0x49/0x50 [] ? kobject_put+0x49/0x50 [] warn_slowpath_fmt+0x33/0x40 [] kobject_put+0x49/0x50 [] driver_register+0x10b/0x130 [] ? sysfs_create_file+0x21/0x30 [] ? driver_create_file+0x1b/0x20 [] pnp_register_driver+0x1c/0x20 [] init_ipmi_si+0xf9/0x34b [ipmi_si] [] do_one_initcall+0x32/0x1a0 [] ? init_ipmi_si+0x0/0x34b [ipmi_si] [] sys_init_module+0x9b/0x1e0 [] ? sys_close+0x75/0xc0 [] syscall_call+0x7/0xb ---[ end trace 44377399cdccfa45 ]---