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ALSA: hda/realtek - Fix mem leak (and rid us of trailing whitespace). 

In sound/pci/hda/patch_realtek.c::alc_auto_fill_dac_nids(), in the
'for (;;)' loop, if the 'badness' value returned from
fill_and_eval_dacs() is negative, then we'll return from the function
without freeing the memory we allocated for 'best_cfg', thus leaking.
Fix the leak by kfree()'ing the memory when badness is negative.

While I was there I also noticed some trailing whitespace in the
function that I removed (along with all other trailing whitespace in
the file) - it didn't seem worth-while to do that as two patches, so I
hope it's OK that I just did it all as one patch.

Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Jesper Juhl 2012-04-12 22:11:25 +02:00 committed by Takashi Iwai
parent 29ebe40284
commit 7d7eb9ea31
1 changed files with 9 additions and 7 deletions
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4
sound/pci/hda/patch_realtek.c
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@ -3398,8 +3398,10 @@ static int alc_auto_fill_dac_nids(struct hda_codec *codec)
for (;;) {
badness = fill_and_eval_dacs(codec, fill_hardwired,
fill_mio_first);
if (badness < 0)
if (badness < 0) {
kfree(best_cfg);
return badness;
}
debug_badness("==> lo_type=%d, wired=%d, mio=%d, badness=0x%x\n",
cfg->line_out_type, fill_hardwired, fill_mio_first,
badness);