| strnape1@fel.cvut.cz | f7b1671 | 2013-05-08 23:03:08 +0200 | [diff] [blame] | 1 | /// Find missing pci_free_consistent for every pci_alloc_consistent. |
| 2 | /// |
| 3 | // Confidence: Moderate |
| 4 | // Copyright: (C) 2013 Petr Strnad. GPLv2. |
| 5 | // URL: http://coccinelle.lip6.fr/ |
| 6 | // Keywords: pci_free_consistent, pci_alloc_consistent |
| 7 | // Options: --no-includes --include-headers |
| 8 | |
| 9 | virtual report |
| 10 | virtual org |
| 11 | |
| 12 | @search@ |
| 13 | local idexpression id; |
| 14 | expression x,y,z,e; |
| 15 | position p1,p2; |
| 16 | type T; |
| 17 | @@ |
| 18 | |
| 19 | id = pci_alloc_consistent@p1(x,y,&z) |
| 20 | ... when != e = id |
| 21 | if (id == NULL || ...) { ... return ...; } |
| 22 | ... when != pci_free_consistent(x,y,id,z) |
| 23 | when != if (id) { ... pci_free_consistent(x,y,id,z) ... } |
| 24 | when != if (y) { ... pci_free_consistent(x,y,id,z) ... } |
| 25 | when != e = (T)id |
| 26 | when exists |
| 27 | ( |
| 28 | return 0; |
| 29 | | |
| 30 | return 1; |
| 31 | | |
| 32 | return id; |
| 33 | | |
| 34 | return@p2 ...; |
| 35 | ) |
| 36 | |
| 37 | @script:python depends on report@ |
| 38 | p1 << search.p1; |
| 39 | p2 << search.p2; |
| 40 | @@ |
| 41 | |
| 42 | msg = "ERROR: missing pci_free_consistent; pci_alloc_consistent on line %s and return without freeing on line %s" % (p1[0].line,p2[0].line) |
| 43 | coccilib.report.print_report(p2[0],msg) |
| 44 | |
| 45 | @script:python depends on org@ |
| 46 | p1 << search.p1; |
| 47 | p2 << search.p2; |
| 48 | @@ |
| 49 | |
| 50 | msg = "ERROR: missing pci_free_consistent; pci_alloc_consistent on line %s and return without freeing on line %s" % (p1[0].line,p2[0].line) |
| 51 | cocci.print_main(msg,p1) |
| 52 | cocci.print_secs("",p2) |