[PATCH] line6: add a check for snd_card_register
From: Kangjie Lu
Date: Tue Dec 25 2018 - 22:40:05 EST
The fix checks if snd_card_register() fails, and if so, issues a
warning.
Signed-off-by: Kangjie Lu <kjlu@xxxxxxx>
---
sound/usb/line6/pod.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/sound/usb/line6/pod.c b/sound/usb/line6/pod.c
index 020c81818951..da8837bc5a5b 100644
--- a/sound/usb/line6/pod.c
+++ b/sound/usb/line6/pod.c
@@ -320,7 +320,8 @@ static void pod_startup4(struct work_struct *work)
line6_read_serial_number(&pod->line6, &pod->serial_number);
/* ALSA audio interface: */
- snd_card_register(line6->card);
+ if (snd_card_register(line6->card))
+ pr_warn("Failed to register ALSA card.\n");
}
/* POD special files: */
--
2.17.2 (Apple Git-113)