ALSA: usb-audio: Fix missing endian conversion
authorTakashi Iwai <tiwai@suse.de>
Mon, 23 Apr 2018 13:19:25 +0000 (15:19 +0200)
committerTakashi Iwai <tiwai@suse.de>
Tue, 24 Apr 2018 11:36:28 +0000 (13:36 +0200)
The UAC2 jack detection support introduced the bmControls checks in a
couple of places, but they forgot the endian conversion; the
bmControls of UAC2 terminal descriptor is __le16, not a byte like in
UAC1.

Fixes: 5a222e849452 ("ALSA: usb-audio: UAC2 jack detection")
Tested-by: Andrew Chant <achant@google.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
sound/usb/mixer.c

index 3387483..344d7b0 100644 (file)
@@ -1860,7 +1860,7 @@ static int parse_audio_input_terminal(struct mixer_build *state, int unitid,
        check_input_term(state, d->bTerminalID, &iterm);
        if (state->mixer->protocol == UAC_VERSION_2) {
                /* Check for jack detection. */
-               if (uac_v2v3_control_is_readable(d->bmControls,
+               if (uac_v2v3_control_is_readable(le16_to_cpu(d->bmControls),
                                                 UAC2_TE_CONNECTOR)) {
                        build_connector_control(state, &iterm, true);
                }
@@ -2562,7 +2562,7 @@ static int snd_usb_mixer_controls(struct usb_mixer_interface *mixer)
                        if (err < 0 && err != -EINVAL)
                                return err;
 
-                       if (uac_v2v3_control_is_readable(desc->bmControls,
+                       if (uac_v2v3_control_is_readable(le16_to_cpu(desc->bmControls),
                                                         UAC2_TE_CONNECTOR)) {
                                build_connector_control(&state, &state.oterm,
                                                        false);