From 5cd5d7c44990658df6ab49f6253c39617c53b03d Mon Sep 17 00:00:00 2001 From: Clemens Ladisch Date: Fri, 18 May 2012 18:00:43 +0200 Subject: ALSA: usb-audio: fix rate_list memory leak The array of sample rates is reallocated every time when opening the PCM device, but was freed only once when unplugging the device. Reported-by: "Alexander E. Patrakov" Cc: Signed-off-by: Clemens Ladisch Signed-off-by: Takashi Iwai --- sound/usb/pcm.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'sound/usb/pcm.c') diff --git a/sound/usb/pcm.c b/sound/usb/pcm.c index 24839d93264..cdf8b760197 100644 --- a/sound/usb/pcm.c +++ b/sound/usb/pcm.c @@ -788,6 +788,9 @@ static int snd_usb_pcm_check_knot(struct snd_pcm_runtime *runtime, int count = 0, needs_knot = 0; int err; + kfree(subs->rate_list.list); + subs->rate_list.list = NULL; + list_for_each_entry(fp, &subs->fmt_list, list) { if (fp->rates & SNDRV_PCM_RATE_CONTINUOUS) return 0; -- cgit v1.2.3