ALSA: usb-audio: Suppress repetitive debug messages from retire_playback_urb()

[platform/adaptation/renesas_rcar/renesas_kernel.git] / sound / usb / pcm.c

diff --git a/sound/usb/pcm.c b/sound/usb/pcm.c
index ca3256d..7bfa7a1 100644 (file)
--- a/sound/usb/pcm.c
+++ b/sound/usb/pcm.c
@@ -1487,7 +1487,8 @@ static void retire_playback_urb(struct snd_usb_substream *subs,
         * The error should be lower than 2ms since the estimate relies
         * on two reads of a counter updated every ms.
         */
-       if (abs(est_delay - subs->last_delay) * 1000 > runtime->rate * 2)
+       if (printk_ratelimit() &&
+           abs(est_delay - subs->last_delay) * 1000 > runtime->rate * 2)
                snd_printk(KERN_DEBUG "delay: estimated %d, actual %d\n",
                        est_delay, subs->last_delay);