ALSA: usb: Mark expected switch fall-through

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Addresses-Coverity-ID: 115084 ("Missing break in switch")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/usb/pcm.c b/sound/usb/pcm.c
index bbc7116..3828471 100644 (file)
--- a/sound/usb/pcm.c
+++ b/sound/usb/pcm.c
@@ -1694,6 +1694,7 @@ static int snd_usb_substream_playback_trigger(struct snd_pcm_substream *substrea
        switch (cmd) {
        case SNDRV_PCM_TRIGGER_START:
                subs->trigger_tstamp_pending_update = true;
+               /* fall through */
        case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
                subs->data_endpoint->prepare_data_urb = prepare_playback_urb;
                subs->data_endpoint->retire_data_urb = retire_playback_urb;