Hi Pavel,
On Tue, Dec 23, 2014, Pavel Machek wrote:
> + while (1) {
> + int cmd, len;
> +
> + fw_pos += cmd_len;
> +
> + if (fw_pos >= fw_entry->size)
> + break;
> +
> + if (fw_pos + 2 > fw_entry->size) {
> + dev_err(info->dev, "Corrupted firmware image\n");
> + err = -EMSGSIZE;
> + break;
> + }
> +
> + cmd_len = fw_entry->data[fw_pos++];
> + cmd_len += fw_entry->data[fw_pos++] << 8;
> + if (cmd_len == 0)
> + break;
> +
> + if (fw_pos + cmd_len > fw_entry->size) {
> + dev_err(info->dev, "Corrupted firmware image\n");
> + err = -EMSGSIZE;
> + break;
> + }
> +
> + /* Skip first two packets */
> + if (++num <= 2)
> + continue;
> +
> + /* Note that this is timing-critical. If sending packets takes too
> + * long, initialization will fail.
> + */
> + cmd = fw_entry->data[fw_pos+1];
> + cmd += fw_entry->data[fw_pos+2] << 8;
> + len = fw_entry->data[fw_pos+3];
> +
> + skb = __hci_cmd_sync(info->hdev, cmd, len, fw_entry->data+fw_pos+4, 500);
> + if (IS_ERR(skb)) {
> + dev_err(info->dev, "...sending cmd %x len %d failed %ld\n",
> + cmd, len, PTR_ERR(skb));
> + err = -EIO;
> + break;
> + }
> + }
Looks like the code is leaking skb when __hci_cmd_sync() succeeds.
Johan
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