_i801 i2c_core wmi sd_mod ahci libahci isci libsas libata scsi_transport_sas [last unloaded: scsi_wait_scan] [ 365.250540] Pid: 9030, comm: kworker/u:1 Tainted: G W 3.3.0-isci-3.0.213+ #1 [ 365.250542] Call Trace: [ 365.250545] [] ? sysfs_add_one+0x99/0xad [ 365.250548] [] warn_slowpath_common+0x85/0x9e [ 365.250551] [] warn_slowpath_fmt+0x6e/0x70 [ 365.250555] [] ? sysfs_add_one+0x3e/0xad [ 365.250558] [] ? sysfs_pathname+0x3c/0x44 [ 365.250561] [] ? sysfs_pathname+0x3c/0x44 [ 365.250564] [] ? sysfs_pathname+0x3c/0x44 [ 365.250567] [] ? sysfs_pathname+0x3c/0x44 [ 365.250570] [] sysfs_add_one+0x99/0xad [ 365.250573] [] create_dir+0x72/0xa5 [ 365.250577] [] sysfs_create_dir+0xa2/0xbe [ 365.250581] [] kobject_add_internal+0x126/0x1f8 [ 365.250585] [] kset_register+0x26/0x3f [ 365.250588] [] kset_create_and_add+0x62/0x7c [ 365.250592] [] populate_msi_sysfs+0x34/0x103 [ 365.250595] [] pci_enable_msi_block+0x1b3/0x216 [ 365.250599] [] try_enable_msi+0x13/0x17 [ 365.250603] [] pciserial_resume_ports+0x21/0x42 [ 365.250607] [] pciserial_resume_one+0x50/0x57 [ 365.250610] [] pci_legacy_resume+0x38/0x47 [ 365.250613] [] pci_pm_restore+0x54/0x87 [ 365.250616] [] ? pci_legacy_resume+0x47/0x47 [ 365.250619] [] dpm_run_callback+0x48/0x7b [ 365.250623] [] device_resume+0x342/0x394 [ 365.250626] [] async_resume+0x21/0x49 That patch has since been reverted, but by inspection it seems that pciserial_suspend_ports() should be invoking .exit() quirks to release resources acquired during .init(). Acked-by: Alan Cox Signed-off-by: Dan Williams Signed-off-by: Greg Kroah-Hartman ~ Hx