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The call to ldebugfs_add_vars() can not really fail, so have it just return nothing, which allows us to clean up a lot of unused error handling code. Cc: Oleg Drokin <oleg.drokin@intel.com> Cc: Andreas Dilger <andreas.dilger@intel.com> Cc: James Simmons <jsimmons@infradead.org> Cc: NeilBrown <neilb@suse.com> Cc: Roman Storozhenko <romeusmeister@gmail.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Quentin Bouget <quentin.bouget@cea.fr> Cc: Aastha Gupta <aastha.gupta4104@gmail.com> Cc: Ben Evans <bevans@cray.com> Cc: Arvind Yadav <arvind.yadav.cs@gmail.com> Cc: Arushi Singhal <arushisinghal19971997@gmail.com> Cc: Frank Zago <fzago@cray.com> Cc: Patrick Farrell <paf@cray.com> Cc: Simo Koskinen <koskisoft@gmail.com> Cc: Andriy Skulysh <andriy.skulysh@seagate.com> Cc: "John L. Hammond" <john.hammond@intel.com> Cc: Mathias Rav <mathiasrav@gmail.com> Cc: Dafna Hirschfeld <dafna3@gmail.com> Cc: "Gustavo A. R. Silva" <garsilva@embeddedor.com> Cc: lustre-devel@lists.lustre.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>