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scripts/coccinelle/api/err_cast.cocci 1.07 KB
f853f8305   Nicolas Palix   Add scripts/cocci...
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  ///
  /// Use ERR_CAST inlined function instead of ERR_PTR(PTR_ERR(...))
  ///
  // Confidence: High
  // Copyright: (C) 2009, 2010 Nicolas Palix, DIKU.  GPLv2.
  // Copyright: (C) 2009, 2010 Julia Lawall, DIKU.  GPLv2.
  // Copyright: (C) 2009, 2010 Gilles Muller, INRIA/LiP6.  GPLv2.
  // URL: http://coccinelle.lip6.fr/
  // Options:
  //
  // Keywords: ERR_PTR, PTR_ERR, ERR_CAST
  // Version min: 2.6.25
  //
  
  virtual context
  virtual patch
  virtual org
  virtual report
  
  
  @ depends on context && !patch && !org && !report@
  expression x;
  @@
  
  * ERR_PTR(PTR_ERR(x))
  
  @ depends on !context && patch && !org && !report @
  expression x;
  @@
  
  - ERR_PTR(PTR_ERR(x))
  + ERR_CAST(x)
  
  @r depends on !context && !patch && (org || report)@
  expression x;
  position p;
  @@
  
   ERR_PTR@p(PTR_ERR(x))
  
  @script:python depends on org@
  p << r.p;
  x << r.x;
  @@
  
  msg="WARNING ERR_CAST can be used with %s" % (x)
  msg_safe=msg.replace("[","@(").replace("]",")")
  coccilib.org.print_todo(p[0], msg_safe)
  
  @script:python depends on report@
  p << r.p;
  x << r.x;
  @@
  
  msg="WARNING: ERR_CAST can be used with %s" % (x)
  coccilib.report.print_report(p[0], msg)