Hi All, There have been several bug-reports about crashes related to the dell-wmi-sysman module: https://bugzilla.redhat.com/show_bug.cgi?id=1936171 https://bugzilla.kernel.org/show_bug.cgi?id=211895 https://bugs.archlinux.org/task/69702 Here is v2 of my series with a bunch of fixes for NULL pointer derefs, double-frees, etc. which fixes this. New in v2: -New patch: "platform/x86: dell-wmi-sysman: Fix crash caused by calling kset_unregister twice" which addresses the direct-cause of the crash. Note that the crash was already fixed in v1 because that removed the code-path where kset_unregister ended up being called twice. -Dropped: "platform/x86: dell-wmi-sysman: Make init_bios_attributes() ACPI object parsing more robust". This needs more testing / discussion and is not necessary to fix the boot-failure which people are seeing. Regards, Hans Hans de Goede (7): platform/x86: dell-wmi-sysman: Fix crash caused by calling kset_unregister twice platform/x86: dell-wmi-sysman: Fix possible NULL pointer deref on exit platform/x86: dell-wmi-sysman: Make it safe to call exit_foo_attributes() multiple times platform/x86: dell-wmi-sysman: Fix release_attributes_data() getting called twice on init_bios_attributes() failure platform/x86: dell-wmi-sysman: Cleanup sysman_init() error-exit handling platform/x86: dell-wmi-sysman: Make sysman_init() return -ENODEV of the interfaces are not found platform/x86: dell-wmi-sysman: Cleanup create_attributes_level_sysfs_files() .../dell/dell-wmi-sysman/enum-attributes.c | 3 + .../x86/dell/dell-wmi-sysman/int-attributes.c | 3 + .../dell/dell-wmi-sysman/passobj-attributes.c | 3 + .../dell/dell-wmi-sysman/string-attributes.c | 3 + .../x86/dell/dell-wmi-sysman/sysman.c | 84 +++++++------------ 5 files changed, 44 insertions(+), 52 deletions(-) -- 2.30.2
