diff options
Diffstat (limited to 'sound/usb/quirks.c')
| -rw-r--r-- | sound/usb/quirks.c | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c index 3879eae7e874..a72bfeee6de2 100644 --- a/sound/usb/quirks.c +++ b/sound/usb/quirks.c @@ -136,6 +136,7 @@ static int create_fixed_stream_quirk(struct snd_usb_audio *chip, snd_printk(KERN_ERR "cannot memdup\n"); return -ENOMEM; } + INIT_LIST_HEAD(&fp->list); if (fp->nr_rates > MAX_NR_RATES) { kfree(fp); return -EINVAL; @@ -154,15 +155,12 @@ static int create_fixed_stream_quirk(struct snd_usb_audio *chip, ? SNDRV_PCM_STREAM_CAPTURE : SNDRV_PCM_STREAM_PLAYBACK; err = snd_usb_add_audio_stream(chip, stream, fp); if (err < 0) { - kfree(fp); - kfree(rate_table); - return err; + goto error; } if (fp->iface != get_iface_desc(&iface->altsetting[0])->bInterfaceNumber || fp->altset_idx >= iface->num_altsetting) { - kfree(fp); - kfree(rate_table); - return -EINVAL; + err = -EINVAL; + goto error; } alts = &iface->altsetting[fp->altset_idx]; if (fp->datainterval == 0) @@ -173,6 +171,11 @@ static int create_fixed_stream_quirk(struct snd_usb_audio *chip, snd_usb_init_pitch(chip, fp->iface, alts, fp); snd_usb_init_sample_rate(chip, fp->iface, alts, fp, fp->rate_max); return 0; +error: + list_del(&fp->list); /* unlink for avoiding double-free */ + kfree(fp); + kfree(rate_table); + return err; } /* @@ -239,6 +242,7 @@ static int create_uaxx_quirk(struct snd_usb_audio *chip, fp->ep_attr = get_endpoint(alts, 0)->bmAttributes; fp->datainterval = 0; fp->maxpacksize = le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize); + INIT_LIST_HEAD(&fp->list); switch (fp->maxpacksize) { case 0x120: @@ -262,6 +266,7 @@ static int create_uaxx_quirk(struct snd_usb_audio *chip, ? SNDRV_PCM_STREAM_CAPTURE : SNDRV_PCM_STREAM_PLAYBACK; err = snd_usb_add_audio_stream(chip, stream, fp); if (err < 0) { + list_del(&fp->list); /* unlink for avoiding double-free */ kfree(fp); return err; } |