fa5e68b1c1
When multiple clients are registered and some of those modules are removed, the default IOCTL callback for those clients are still not NULL. Calling them will result in crash. Set the default IOCTL callback pointer to NULL on unregister. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Link: https://lore.kernel.org/r/20230612224033.2382527-2-srinivas.pandruvada@linux.intel.com Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>