If this array is not cleared, the jack related code later might fail to create "Internal Speaker Phantom Jack" on Dell Inspiron 3420 and Dell Vostro 2420.
BugLink: https://bugs.launchpad.net/bugs/1076840 Cc: stable@vger.kernel.org (3.6+) Signed-off-by: David Henningsson david.henningsson@canonical.com --- sound/pci/hda/patch_cirrus.c | 1 + 1 file changed, 1 insertion(+)
Notes: 1) AlsaInfo at https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1076840/+attachment/342... 2) The phantom jack feature was added in Linux 3.6, but was backported to Ubuntu's 3.5 kernel, so should be applied there as well.
diff --git a/sound/pci/hda/patch_cirrus.c b/sound/pci/hda/patch_cirrus.c index f99cbf9..ed98172 100644 --- a/sound/pci/hda/patch_cirrus.c +++ b/sound/pci/hda/patch_cirrus.c @@ -473,6 +473,7 @@ static int parse_output(struct hda_codec *codec) memcpy(cfg->speaker_pins, cfg->line_out_pins, sizeof(cfg->speaker_pins)); cfg->line_outs = 0; + memset(cfg->line_out_pins, 0, sizeof(cfg->line_out_pins)); }
return 0;