ptr_ret.cocci 1.3 KB

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  1. ///
  2. /// Use PTR_RET rather than if(IS_ERR(...)) + PTR_ERR
  3. ///
  4. // Confidence: High
  5. // Copyright: (C) 2012 Julia Lawall, INRIA/LIP6. GPLv2.
  6. // Copyright: (C) 2012 Gilles Muller, INRIA/LiP6. GPLv2.
  7. // URL: http://coccinelle.lip6.fr/
  8. // Options: -no_includes -include_headers
  9. //
  10. // Keywords: ERR_PTR, PTR_ERR, PTR_RET
  11. // Version min: 2.6.39
  12. //
  13. virtual context
  14. virtual patch
  15. virtual org
  16. virtual report
  17. @depends on patch@
  18. expression ptr;
  19. @@
  20. - if (IS_ERR(ptr)) return PTR_ERR(ptr); else return 0;
  21. + return PTR_RET(ptr);
  22. @depends on patch@
  23. expression ptr;
  24. @@
  25. - if (IS_ERR(ptr)) return PTR_ERR(ptr); return 0;
  26. + return PTR_RET(ptr);
  27. @r1 depends on !patch@
  28. expression ptr;
  29. position p1;
  30. @@
  31. * if@p1 (IS_ERR(ptr)) return PTR_ERR(ptr); else return 0;
  32. @r2 depends on !patch@
  33. expression ptr;
  34. position p2;
  35. @@
  36. * if@p2 (IS_ERR(ptr)) return PTR_ERR(ptr); return 0;
  37. @script:python depends on org@
  38. p << r1.p1;
  39. @@
  40. coccilib.org.print_todo(p[0], "WARNING: PTR_RET can be used")
  41. @script:python depends on org@
  42. p << r2.p2;
  43. @@
  44. coccilib.org.print_todo(p[0], "WARNING: PTR_RET can be used")
  45. @script:python depends on report@
  46. p << r1.p1;
  47. @@
  48. coccilib.report.print_report(p[0], "WARNING: PTR_RET can be used")
  49. @script:python depends on report@
  50. p << r2.p2;
  51. @@
  52. coccilib.report.print_report(p[0], "WARNING: PTR_RET can be used")