ALSA: hda - Allow patching with any vendor/subsystem ids

In the ugly real world, there area really broken devices that don't set
codec SSID correctly.  In such a case, the ID can be random, thus the
patching won't work reliably.

For applying the patch forcibly to such a device, the driver will skip
the vendor and/or subsystem ID checks when zero or a negative number is
given in [codec] section.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 3 insertions, 3 deletions

diff --git a/sound/pci/hda/hda_hwdep.c b/sound/pci/hda/hda_hwdep.c
index bf3ced51e0f8..72e5885007cc 100644
--- a/sound/pci/hda/hda_hwdep.c
+++ b/sound/pci/hda/hda_hwdep.c
@@ -643,14 +643,14 @@ static inline int strmatch(const char *a, const char *b)
 static void parse_codec_mode(char *buf, struct hda_bus *bus,
                              struct hda_codec **codecp)
 {
-        unsigned int vendorid, subid, caddr;
+        int vendorid, subid, caddr;
         struct hda_codec *codec;
 
         *codecp = NULL;
         if (sscanf(buf, "%i %i %i", &vendorid, &subid, &caddr) == 3) {
                 list_for_each_entry(codec, &bus->codec_list, list) {
-                        if (codec->vendor_id == vendorid &&
-                            codec->subsystem_id == subid &&
+                        if ((vendorid <= 0 || codec->vendor_id == vendorid) &&
+                            (subid <= 0 || codec->subsystem_id == subid) &&
                             codec->addr == caddr) {
                                 *codecp = codec;
                                 break;