6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Wentao Liang <vulab@xxxxxxxxxxx>
commit 822b7ec657e99b44b874e052d8540d8b54fe8569 upstream.
Check the return value of snd_ctl_rename_id() in
snd_hda_create_dig_out_ctls(). Ensure that failures
are properly handled.
[ Note: the error cannot happen practically because the only error
condition in snd_ctl_rename_id() is the missing ID, but this is a
rename, hence it must be present. But for the code consistency,
it's safer to have always the proper return check -- tiwai ]
Fixes: 5c219a340850 ("ALSA: hda: Fix kctl->id initialization")
Cc: stable@xxxxxxxxxxxxxxx # 6.4+
Signed-off-by: Wentao Liang <vulab@xxxxxxxxxxx>
Link: https://patch.msgid.link/20250213074543.1620-1-vulab@xxxxxxxxxxx
Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
sound/pci/hda/hda_codec.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -2463,7 +2463,9 @@ int snd_hda_create_dig_out_ctls(struct h
break;
id = kctl->id;
id.index = spdif_index;
- snd_ctl_rename_id(codec->card, &kctl->id, &id);
+ err = snd_ctl_rename_id(codec->card, &kctl->id, &id);
+ if (err < 0)
+ return err;
}
bus->primary_dig_out_type = HDA_PCM_TYPE_HDMI;
}
