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-rw-r--r--sound/usb/quirks.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c
index 4a650ab..62b955b 100644
--- a/sound/usb/quirks.c
+++ b/sound/usb/quirks.c
@@ -164,6 +164,12 @@ static int create_fixed_stream_quirk(struct snd_usb_audio *chip,
return -EINVAL;
}
alts = &iface->altsetting[fp->altset_idx];
+ if (get_iface_desc(alts)->bNumEndpoints < 1) {
+ kfree(fp);
+ kfree(rate_table);
+ return -EINVAL;
+ }
+
fp->datainterval = snd_usb_parse_datainterval(chip, alts);
fp->maxpacksize = le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize);
usb_set_interface(chip->dev, fp->iface, 0);