name : device_node_continue.cocci // SPDX-License-Identifier: GPL-2.0-only /// Device node iterators put the previous value of the index variable, so an /// explicit put causes a double put. /// // Confidence: High // Copyright: (C) 2015 Julia Lawall, Inria. // URL: https://coccinelle.gitlabpages.inria.fr/website // Options: --no-includes --include-headers // Requires: 1.0.4 // Keywords: for_each_child_of_node, etc. // This uses a conjunction, which requires at least coccinelle >= 1.0.4 virtual patch virtual context virtual org virtual report @r exists@ expression e1,e2; local idexpression n; iterator name for_each_node_by_name, for_each_node_by_type, for_each_compatible_node, for_each_matching_node, for_each_matching_node_and_match, for_each_child_of_node, for_each_available_child_of_node, for_each_node_with_property; iterator i; position p1,p2; statement S; @@ ( ( for_each_node_by_name(n,e1) S | for_each_node_by_type(n,e1) S | for_each_compatible_node(n,e1,e2) S | for_each_matching_node(n,e1) S | for_each_matching_node_and_match(n,e1,e2) S | for_each_child_of_node(e1,n) S | for_each_available_child_of_node(e1,n) S | for_each_node_with_property(n,e1) S ) & i@p1(...) { ... when != of_node_get(n) when any of_node_put@p2(n); ... when any } ) @s exists@ local idexpression r.n; statement S; position r.p1,r.p2; iterator i; @@ of_node_put@p2(n); ... when any i@p1(..., n, ...) S @t depends on s && patch && !context && !org && !report@ local idexpression n; position r.p2; @@ - of_node_put@p2(n); // ---------------------------------------------------------------------------- @t_context depends on s && !patch && (context || org || report)@ local idexpression n; position r.p2; position j0; @@ * of_node_put@j0@p2(n); // ---------------------------------------------------------------------------- @script:python t_org depends on org@ j0 << t_context.j0; @@ msg = "ERROR: probable double put." coccilib.org.print_todo(j0[0], msg) // ---------------------------------------------------------------------------- @script:python t_report depends on report@ j0 << t_context.j0; @@ msg = "ERROR: probable double put." coccilib.report.print_report(j0[0], msg)