1. 16 11月, 2008 1 次提交
    • J
      ALSA: sound/pci/pcxhr/pcxhr.c: introduce missing kfree and pci_disable_device · d6f35e3f
      Julia Lawall 提交于
      Error handling code following a kzalloc should free the allocated data.
      The error handling code is adjusted to call pci_disable_device(pci); as
      well, as done later in the function
      
      The semantic match that finds the problem is as follows:
      (http://www.emn.fr/x-info/coccinelle/)
      
      // <smpl>
      @r exists@
      local idexpression x;
      statement S;
      expression E;
      identifier f,l;
      position p1,p2;
      expression *ptr != NULL;
      @@
      
      (
      if ((x@p1 = \(kmalloc\|kzalloc\|kcalloc\)(...)) == NULL) S
      |
      x@p1 = \(kmalloc\|kzalloc\|kcalloc\)(...);
      ...
      if (x == NULL) S
      )
      <... when != x
           when != if (...) { <+...x...+> }
      x->f = E
      ...>
      (
       return \(0\|<+...x...+>\|ptr\);
      |
       return@p2 ...;
      )
      
      @script:python@
      p1 << r.p1;
      p2 << r.p2;
      @@
      
      print "* file: %s kmalloc %s return %s" % (p1[0].file,p1[0].line,p2[0].line)
      // </smpl>
      Signed-off-by: NJulia Lawall <julia@diku.dk>
      Signed-off-by: NTakashi Iwai <tiwai@suse.de>
      d6f35e3f
  2. 10 11月, 2008 1 次提交
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