| // SPDX-License-Identifier: GPL-2.0-only |
| /// PTR_ERR should be applied before its argument is reassigned, typically |
| /// to NULL |
| /// |
| // Confidence: High |
| // Copyright: (C) 2012 Julia Lawall, INRIA/LIP6. |
| // Copyright: (C) 2012 Gilles Muller, INRIA/LiP6. |
| // URL: https://coccinelle.gitlabpages.inria.fr/website |
| // Comments: |
| // Options: --no-includes --include-headers |
| |
| virtual org |
| virtual report |
| virtual context |
| |
| @r exists@ |
| expression e,e1; |
| constant c; |
| position p1,p2; |
| @@ |
| |
| *e@p1 = c |
| ... when != e = e1 |
| when != &e |
| when != true IS_ERR(e) |
| *PTR_ERR@p2(e) |
| |
| @script:python depends on org@ |
| p1 << r.p1; |
| p2 << r.p2; |
| @@ |
| |
| cocci.print_main("PTR_ERR",p2) |
| cocci.print_secs("assignment",p1) |
| |
| @script:python depends on report@ |
| p1 << r.p1; |
| p2 << r.p2; |
| @@ |
| |
| msg = "ERROR: PTR_ERR applied after initialization to constant on line %s" % (p1[0].line) |
| coccilib.report.print_report(p2[0],msg) |
