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| author | Eldad Zack <eldad@fogrefinery.com> | 2013-08-03 10:50:20 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2013-08-06 10:51:11 +0200 |
| commit | 95fec88332dbbe4344ffc1b564480402a89ee805 (patch) | |
| tree | f69bbc181b400e870ecbf578c3dadc0031a6a2a4 | |
| parent | f34d0650133389c76e22e9f27e57b74ed9e2c042 (diff) | |
| download | blackbird-op-linux-95fec88332dbbe4344ffc1b564480402a89ee805.tar.gz blackbird-op-linux-95fec88332dbbe4344ffc1b564480402a89ee805.zip | |
ALSA: usb-audio: do not initialize and check implicit_fb
Since implicit_fb is not changed, !implicit_fb will always
be true - it is set only after these checks.
Similarly, there's also no need to set it at the top of the function.
Change the type of implicit_fb to bool (more appropriate).
Signed-off-by: Eldad Zack <eldad@fogrefinery.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
| -rw-r--r-- | sound/usb/pcm.c | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/sound/usb/pcm.c b/sound/usb/pcm.c index c31dbdc09178..bb2e0f52e92f 100644 --- a/sound/usb/pcm.c +++ b/sound/usb/pcm.c @@ -405,7 +405,7 @@ static int set_sync_endpoint(struct snd_usb_substream *subs, { int is_playback = subs->direction == SNDRV_PCM_STREAM_PLAYBACK; unsigned int ep, attr; - int implicit_fb = 0; + bool implicit_fb; int err; /* we need a sync pipe in async OUT or adaptive IN mode */ @@ -432,8 +432,7 @@ static int set_sync_endpoint(struct snd_usb_substream *subs, the audio fields in the endpoint descriptors */ if ((get_endpoint(alts, 1)->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) != USB_ENDPOINT_XFER_ISOC || (get_endpoint(alts, 1)->bLength >= USB_DT_ENDPOINT_AUDIO_SIZE && - get_endpoint(alts, 1)->bSynchAddress != 0 && - !implicit_fb)) { + get_endpoint(alts, 1)->bSynchAddress != 0)) { snd_printk(KERN_ERR "%d:%d:%d : invalid sync pipe. bmAttributes %02x, bLength %d, bSynchAddress %02x\n", dev->devnum, fmt->iface, fmt->altsetting, get_endpoint(alts, 1)->bmAttributes, @@ -442,8 +441,7 @@ static int set_sync_endpoint(struct snd_usb_substream *subs, return -EINVAL; } ep = get_endpoint(alts, 1)->bEndpointAddress; - if (!implicit_fb && - get_endpoint(alts, 0)->bLength >= USB_DT_ENDPOINT_AUDIO_SIZE && + if (get_endpoint(alts, 0)->bLength >= USB_DT_ENDPOINT_AUDIO_SIZE && ((is_playback && ep != (unsigned int)(get_endpoint(alts, 0)->bSynchAddress | USB_DIR_IN)) || (!is_playback && ep != (unsigned int)(get_endpoint(alts, 0)->bSynchAddress & ~USB_DIR_IN)))) { snd_printk(KERN_ERR "%d:%d:%d : invalid sync pipe. is_playback %d, ep %02x, bSynchAddress %02x\n", |
