| /// PTR_ERR should be applied before its argument is reassigned, typically | |
| /// to NULL | |
| /// | |
| // Confidence: High | |
| // Copyright: (C) 2012 Julia Lawall, INRIA/LIP6. GPLv2. | |
| // Copyright: (C) 2012 Gilles Muller, INRIA/LiP6. GPLv2. | |
| // URL: http://coccinelle.lip6.fr/ | |
| // 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) |