[PATCH] ALSA: core: Fix SSID quirk lookup for subvendor=0
Some weird devices set the codec SSID vendor ID 0, and snd_pci_quirk_lookup_id() loop aborts at the point although it should still try matching with the SSID device ID. This resulted in a missing quirk for some old Macs.
Fix the loop termination condition to check both subvendor and subdevice.
Fixes: 73355ddd8775 ("ALSA: hda: Code refactoring snd_hda_pick_fixup()") Cc: stable@vger.kernel.org BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=215495 Signed-off-by: Takashi Iwai tiwai@suse.de --- sound/core/misc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sound/core/misc.c b/sound/core/misc.c index 3579dd7a161f..a512c849a9e5 100644 --- a/sound/core/misc.c +++ b/sound/core/misc.c @@ -112,7 +112,7 @@ snd_pci_quirk_lookup_id(u16 vendor, u16 device, { const struct snd_pci_quirk *q;
- for (q = list; q->subvendor; q++) { + for (q = list; q->subvendor && q->subdevice; q++) { if (q->subvendor != vendor) continue; if (!q->subdevice ||
On Sat, 15 Jan 2022 10:09:29 +0100, Takashi Iwai wrote:
Some weird devices set the codec SSID vendor ID 0, and snd_pci_quirk_lookup_id() loop aborts at the point although it should still try matching with the SSID device ID. This resulted in a missing quirk for some old Macs.
Fix the loop termination condition to check both subvendor and subdevice.
Fixes: 73355ddd8775 ("ALSA: hda: Code refactoring snd_hda_pick_fixup()") Cc: stable@vger.kernel.org BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=215495 Signed-off-by: Takashi Iwai tiwai@suse.de
sound/core/misc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sound/core/misc.c b/sound/core/misc.c index 3579dd7a161f..a512c849a9e5 100644 --- a/sound/core/misc.c +++ b/sound/core/misc.c @@ -112,7 +112,7 @@ snd_pci_quirk_lookup_id(u16 vendor, u16 device, { const struct snd_pci_quirk *q;
- for (q = list; q->subvendor; q++) {
- for (q = list; q->subvendor && q->subdevice; q++) {
Doh, a wrong version was sent out. It must be OR instead. Will resubmit v2.
Takashi
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Takashi Iwai