• Bjorn Helgaas's avatar
    firmware: dmi-sysfs: Remove "dmi" directory on module exit · d0f80f9a
    Bjorn Helgaas authored
    With CONFIG_DEBUG_KOBJECT_RELEASE=y, removing and immediately reloading the
    dmi-sysfs module causes the following warning:
    
      sysfs: cannot create duplicate filename '/firmware/dmi'
      kobject_add_internal failed for dmi with -EEXIST, don't try to register things with the same name in the same directory.
    
    The "dmi" directory stays in sysfs until the dmi_kobj is released, and
    DEBUG_KOBJECT_RELEASE delays that.
    
    I don't think we can hit this problem in normal usage because dmi_kobj is
    static and nothing outside dmi-sysfs can get a reference to it, so the
    only way to delay the "dmi" release is with DEBUG_KOBJECT_RELEASE.
    Signed-off-by: default avatarBjorn Helgaas <bhelgaas@google.com>
    Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
    d0f80f9a
dmi-sysfs.c 16.9 KB