Missing return in atcab_aes_ccm_aad_finish

[peschuster]

In

cryptoauthlib/lib/crypto/atca_crypto_hw_aes_ccm.c

Lines 370 to 376 in 86b3046

	if (ctx == NULL)
	{
	status = ATCA_TRACE(ATCA_BAD_PARAM, "Null pointer");
	}
	// Pad and process any incomplete aad data blocks
	if (ctx->partial_aad_size > 0)

pointer 'ctx' is checked for NULL at line 370 but will be dereferenced at line 376.

I think there is a return statement missing or the condition in line 376 should be extended to cover a null pointer.