diff options
author | Takashi Iwai <tiwai@suse.de> | 2014-11-11 15:45:57 +0100 |
---|---|---|
committer | Luis Henriques <luis.henriques@canonical.com> | 2014-11-27 11:21:42 +0000 |
commit | 487190f216bcd812305ec874626868969c5c0054 (patch) | |
tree | 4e5017648aadad3e1f2ae58d30e3ec23fe45529a /sound/usb | |
parent | ae72f1c1c2d0f55d342a53bcb8cb0aa57644caf0 (diff) |
ALSA: usb-audio: Fix memory leak in FTU quirk
commit 1a290581ded60e87276741f8ca97b161d2b226fc upstream.
M-audio FastTrack Ultra quirk doesn't release the kzalloc'ed memory.
This patch adds the private_free callback to release it properly.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
Diffstat (limited to 'sound/usb')
-rw-r--r-- | sound/usb/mixer_quirks.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/sound/usb/mixer_quirks.c b/sound/usb/mixer_quirks.c index f119a41ed9a9..7c83bab69dee 100644 --- a/sound/usb/mixer_quirks.c +++ b/sound/usb/mixer_quirks.c @@ -885,6 +885,11 @@ static int snd_ftu_eff_switch_put(struct snd_kcontrol *kctl, return changed; } +static void kctl_private_value_free(struct snd_kcontrol *kctl) +{ + kfree((void *)kctl->private_value); +} + static int snd_ftu_create_effect_switch(struct usb_mixer_interface *mixer, int validx, int bUnitID) { @@ -919,6 +924,7 @@ static int snd_ftu_create_effect_switch(struct usb_mixer_interface *mixer, return -ENOMEM; } + kctl->private_free = kctl_private_value_free; err = snd_ctl_add(mixer->chip->card, kctl); if (err < 0) return err; |