[ALSA] fix resource leak in usbmixer

Modules: USB generic driver

We may leak 'namelist' in sound/usb/usbmixer.c::parse_audio_selector_unit()

Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/usb/usbmixer.c b/sound/usb/usbmixer.c
index 0bfea72..8d08b34 100644 (file)
--- a/sound/usb/usbmixer.c
+++ b/sound/usb/usbmixer.c
@@ -1468,6 +1468,7 @@ static int parse_audio_selector_unit(struct mixer_build *state, int unitid, unsi
        kctl = snd_ctl_new1(&mixer_selectunit_ctl, cval);
        if (! kctl) {
                snd_printk(KERN_ERR "cannot malloc kcontrol\n");
+               kfree(namelist);
                kfree(cval);
                return -ENOMEM;
        }