[PATCH] ALSA: caiaq: Don't abort when no input device is available

[Takashi Iwai <tiwai@suse.de>]

The previous fix to handle the error from setup_card() caused a
regression for the models that have no dedicated input device;
snd_usb_caiaq_input_init() just returns -EINVAL, and we treat it as a
fatal error although it should be ignored.

As a regression fix, change the error code to -ENODEV, and ignore this
error in the callee, to continue probing.

Fixes: 28abd224db4a ("ALSA: caiaq: Handle probe errors properly")
Cc: <stable@vger.kernel.org>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=221423
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/usb/caiaq/device.c | 2 +-
 sound/usb/caiaq/input.c  | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/usb/caiaq/device.c b/sound/usb/caiaq/device.c
index ad9f744b496b..b8ddd124e905 100644
--- a/sound/usb/caiaq/device.c
+++ b/sound/usb/caiaq/device.c
@@ -366,7 +366,7 @@ static int setup_card(struct snd_usb_caiaqdev *cdev)
 
 #ifdef CONFIG_SND_USB_CAIAQ_INPUT
 	ret = snd_usb_caiaq_input_init(cdev);
-	if (ret < 0) {
+	if (ret < 0 && ret != -ENODEV) {
 		dev_err(dev, "Unable to set up input system (ret=%d)\n", ret);
 		return ret;
 	}
diff --git a/sound/usb/caiaq/input.c b/sound/usb/caiaq/input.c
index a9130891bb69..5c70fdf61cc1 100644
--- a/sound/usb/caiaq/input.c
+++ b/sound/usb/caiaq/input.c
@@ -804,7 +804,7 @@ int snd_usb_caiaq_input_init(struct snd_usb_caiaqdev *cdev)
 
 	default:
 		/* no input methods supported on this device */
-		ret = -EINVAL;
+		ret = -ENODEV;
 		goto exit_free_idev;
 	}
 
-- 
2.54.0