3.16.7-ckt5 -stable review patch. If anyone has any objections, please let me know.
------------------ From: Dan Carpenter <[email protected]> commit 69eba10e606a80665f8573221fec589430d9d1cb upstream. In olden times the snd_hda_param_read() function always set "*start_id" but in 2007 we introduced a new return and it causes uninitialized data bugs in a couple of the callers: print_codec_info() and hdmi_parse_codec(). Fixes: e8a7f136f5ed ('[ALSA] hda-intel - Improve HD-audio codec probing robustness') Signed-off-by: Dan Carpenter <[email protected]> Signed-off-by: Takashi Iwai <[email protected]> Signed-off-by: Luis Henriques <[email protected]> --- sound/pci/hda/hda_codec.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c index 4c20277a6835..fb9497a0062a 100644 --- a/sound/pci/hda/hda_codec.c +++ b/sound/pci/hda/hda_codec.c @@ -338,8 +338,10 @@ int snd_hda_get_sub_nodes(struct hda_codec *codec, hda_nid_t nid, unsigned int parm; parm = snd_hda_param_read(codec, nid, AC_PAR_NODE_COUNT); - if (parm == -1) + if (parm == -1) { + *start_id = 0; return 0; + } *start_id = (parm >> 16) & 0x7fff; return (int)(parm & 0x7fff); } -- 2.1.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
