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-rw-r--r--sound/usb/usbaudio.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/sound/usb/usbaudio.c b/sound/usb/usbaudio.c
index c52461d4a04..c6d628a3127 100644
--- a/sound/usb/usbaudio.c
+++ b/sound/usb/usbaudio.c
@@ -2077,8 +2077,14 @@ int snd_usb_ctl_msg(struct usb_device *dev, unsigned int pipe, __u8 request,
static int usb_audio_probe(struct usb_interface *intf,
const struct usb_device_id *id);
static void usb_audio_disconnect(struct usb_interface *intf);
+
+#ifdef CONFIG_PM
static int usb_audio_suspend(struct usb_interface *intf, pm_message_t message);
static int usb_audio_resume(struct usb_interface *intf);
+#else
+#define usb_audio_suspend NULL
+#define usb_audio_resume NULL
+#endif
static struct usb_device_id usb_audio_ids [] = {
#include "usbquirks.h"
@@ -3658,6 +3664,7 @@ static void usb_audio_disconnect(struct usb_interface *intf)
dev_get_drvdata(&intf->dev));
}
+#ifdef CONFIG_PM
static int usb_audio_suspend(struct usb_interface *intf, pm_message_t message)
{
struct snd_usb_audio *chip = dev_get_drvdata(&intf->dev);
@@ -3695,6 +3702,7 @@ static int usb_audio_resume(struct usb_interface *intf)
return 0;
}
+#endif /* CONFIG_PM */
static int __init snd_usb_audio_init(void)
{