Error in RNG in mbedtls file

[samryanuofl]

ambz2_matter/component/common/network/ssl/mbedtls-matter/library/ctr_drbg.c

Lines 598 to 611 in f808fd8

	#if (CONFIG_EXAMPLE_MATTER) && (CONFIG_ENABLE_MATTER_PRNG)
	int ret = crypto_init();
	if (ret != SUCCESS)
	{
	printf("crypto_init() failed\r\n");
	return ret;
	}
	ret = crypto_random_generate(output, output_len);
	if (ret != 0)
	ret = 0xac // CHIP_ERROR_INTERNAL
	return ret;
	#else

Missing semicolon at the end of this line causes a compilation error if this code is enabled.

ret = 0xac // CHIP_ERROR_INTERNAL 

Also, should there be context protection here? Like

device_mutex_lock(RT_DEV_LOCK_CRYPTO);
int ret = crypto_init(); 
if (ret != SUCCESS) 
{ 
   printf("crypto_init() failed\r\n"); 
   device_mutex_unlock(RT_DEV_LOCK_CRYPTO);
   return ret; 
} 
  
ret = crypto_random_generate(output, output_len); 
device_mutex_unlock(RT_DEV_LOCK_CRYPTO);
if (ret != 0) 
    ret = 0xac; // CHIP_ERROR_INTERNAL 

return ret;
#else

[xshuqun]

@samryanuofl Thanks for informing. PR has been created to fix the issue #188.
Please do check it, and close the issue if there is no further question on it.