ALSA: usb-audio: remove implicit_fb from quirk

Since the quirks all apply to implicit feedback (the source endpoint
is always a data endpoint), there's no need to set and check
a flag for it.

Signed-off-by: Eldad Zack <eldad@fogrefinery.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/usb/pcm.c b/sound/usb/pcm.c
index af30e08e3d3b7ec6cf587f2c4897f2febbb1c6c8..b375d58871e7ce9f7eb0e63a3f73644984c6c5e1 100644 (file)
--- a/sound/usb/pcm.c
+++ b/sound/usb/pcm.c
@@ -334,7 +334,6 @@ static int set_sync_ep_implicit_fb_quirk(struct snd_usb_substream *subs,
 {
        struct usb_host_interface *alts;
        struct usb_interface *iface;
-       int implicit_fb = 0;
        unsigned int ep;
 
        /* Implicit feedback sync EPs consumers are always playback EPs */
@@ -344,7 +343,6 @@ static int set_sync_ep_implicit_fb_quirk(struct snd_usb_substream *subs,
        switch (subs->stream->chip->usb_id) {
        case USB_ID(0x0763, 0x2030): /* M-Audio Fast Track C400 */
        case USB_ID(0x0763, 0x2031): /* M-Audio Fast Track C600 */
-               implicit_fb = 1;
                ep = 0x81;
                iface = usb_ifnum_to_if(dev, 3);
 
@@ -356,7 +354,6 @@ static int set_sync_ep_implicit_fb_quirk(struct snd_usb_substream *subs,
                break;
        case USB_ID(0x0763, 0x2080): /* M-Audio FastTrack Ultra */
        case USB_ID(0x0763, 0x2081):
-               implicit_fb = 1;
                ep = 0x81;
                iface = usb_ifnum_to_if(dev, 2);
 
@@ -374,7 +371,6 @@ static int set_sync_ep_implicit_fb_quirk(struct snd_usb_substream *subs,
            search_roland_implicit_fb(dev, altsd->bInterfaceNumber + 1,
                                      altsd->bAlternateSetting,
                                      &alts, &ep) >= 0) {
-               implicit_fb = 1;
                goto add_sync_ep;
        }
 
@@ -384,9 +380,7 @@ static int set_sync_ep_implicit_fb_quirk(struct snd_usb_substream *subs,
 add_sync_ep:
        subs->sync_endpoint = snd_usb_add_endpoint(subs->stream->chip,
                                                   alts, ep, !subs->direction,
-                                                  implicit_fb ?
-                                                       SND_USB_ENDPOINT_TYPE_DATA :
-                                                       SND_USB_ENDPOINT_TYPE_SYNC);
+                                                  SND_USB_ENDPOINT_TYPE_DATA);
        if (!subs->sync_endpoint)
                return -EINVAL;