On 01/18/16 at 10:11am, Mimi Zohar wrote:
> diff --git a/fs/exec.c b/fs/exec.c
> index 211b81c..a5ae51e 100644
> --- a/fs/exec.c
> +++ b/fs/exec.c
> @@ -884,6 +884,21 @@ out:
> }
> EXPORT_SYMBOL_GPL(kernel_read_file);
>
> +int kernel_read_file_from_fd(int fd, void **buf, loff_t *size, loff_t
> max_size,
> + int policy_id)
> +{
> + struct fd f = fdget(fd);
> + int ret = -ENOEXEC;
> +
> + if (!f.file)
> + goto out;
It is no need to call the fdput, if f.file is NULL. It is better to
return it directly.
> +
> + ret = kernel_read_file(f.file, buf, size, max_size, policy_id);
> +out:
> + fdput(f);
> + return ret;
> +}
> +
Thanks
Minfei
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