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  1. 07 Nov, 2012 1 commit
    • Takashi Iwai's avatar
      ALSA: hda - Fix empty DAC filling in patch_via.c · 5b376195
      Takashi Iwai authored 
      In via_auto_fill_adc_nids(), the parser tries to fill dac_nids[] at
the point of the current line-out (i).  When no valid path is found
for this output, this results in dac = 0, thus it creates a hole in
dac_nids[].  This confuses is_empty_dac() and trims the detected DAC
in later reference.

This patch fixes the bug by appending DAC properly to dac_nids[] in
via_auto_fill_adc_nids().
Reported-by: default avatarMassimo Del Fedele <max@veneto.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
      5b376195
  3. 05 Nov, 2012 5 commits
  5. 04 Nov, 2012 2 commits
  7. 31 Oct, 2012 1 commit
  9. 30 Oct, 2012 6 commits
  11. 28 Oct, 2012 1 commit
  13. 27 Oct, 2012 2 commits
  15. 26 Oct, 2012 1 commit
  17. 25 Oct, 2012 2 commits
  19. 24 Oct, 2012 1 commit
  21. 22 Oct, 2012 1 commit
  23. 21 Oct, 2012 1 commit
    • Julia Lawall's avatar
      ALSA: sound/isa/opti9xx/miro.c: eliminate possible double free · edb66893
      Julia Lawall authored 
      snd_miro_probe is a static function that is only called twice in the file
that defines it.  At each call site, its argument is freed using
snd_card_free.  Thus, there is no need for snd_miro_probe to call
snd_card_free on its argument on any of its error exit paths.

Because snd_card_free both reads the fields of its argument and kfrees its
argments, the results of the second snd_card_free should be unpredictable.

A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@r@
identifier f,free,a;
parameter list[n] ps;
type T;
expression e;
@@

f(ps,T a,...) {
  ... when any
      when != a = e
  if(...) { ... free(a); ... return ...; }
  ... when any
}

@@
identifier r.f,r.free;
expression x,a;
expression list[r.n] xs;
@@

* x = f(xs,a,...);
  if (...) { ... free(a); ... return ...; }
// </smpl>
Signed-off-by: default avatarJulia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
      edb66893
  25. 20 Oct, 2012 16 commits
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