[PATCH] security:trusted_tpm2: Fix memory leak in tpm2_key_encode()

[Jarkko Sakkinen]

"KEYS: trusted: fix memory leak in tpm2_key_encode()"

On Tue, Jun 07, 2022 at 03:46:50PM +0800, Jianglei Nie wrote:
> The function allocates a memory chunk for scratch by kmalloc(), but
                                        ~~~         ~~ 
                                        from        with

There's more than one function in Linux - maybe you'd rather want
to write: "tpm2_key_encode() allocates ..."

> it is never freed through the function, which leads to a memory leak.

You can just write "it is never freed, which leads to a memory leak."

> Handle those cases with kfree().

"Free the memory chunk with kfree() in the return paths."

> Signed-off-by: Jianglei Nie <niejianglei2021 at 163.com>

Thank you finding this and providing a fix, it is highly appreciated.
Please don't take the nitpicking with the language personally. Just want
to have it documented in appropriate form.

BR, Jarkko