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The libertas driver was trying to register sysfs groups "by hand" which causes them to be created _after_ the device is initialized and announced to userspace, which causes races and can prevent userspace tools from seeing the sysfs files correctly. Fix this up by using the built-in sysfs_groups pointers in struct net_device which were created for this very reason, fixing the race condition, and properly allowing for any error that might have occured to be handled properly. Cc: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20210503115736.2104747-54-gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>