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[ Upstream commit7079b3483a] If device_register() fails, device_unregister() should not be called because it will free some resources that are not allocated. put_device() should be used instead. Fixes:308ee87a2f("staging: fieldbus: anybus-s: support HMS Anybus-S bus") Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Link: https://lore.kernel.org/r/5401a519608d6e1a4e7435c20f4f20b0c5c36c23.1650610082.git.christophe.jaillet@wanadoo.fr Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Sasha Levin <sashal@kernel.org>