commitc93ad1337a
upstream. If register_snap_client fails in atalk_init, error code should be set, otherwise it will triggers NULL pointer dereference while unloading module. Fixes:9804501fa1
("appletalk: Fix potential NULL pointer dereference in unregister_snap_client") Signed-off-by: YueHaibing <yuehaibing@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>