crypto: qat - refactor qat_crypto_dev_config()

Refactor function qat_crypto_dev_config() to propagate errors to
the caller.
Suggested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

drivers/crypto/qat/qat_common/qat_crypto.c

@@ -115,88 +115,103 @@ struct qat_crypto_instance *qat_crypto_get_instance_node(int node)
  */
 int qat_crypto_dev_config(struct adf_accel_dev *accel_dev)
 {
-	int cpus = num_online_cpus();
-	int banks = GET_MAX_BANKS(accel_dev);
 	char key[ADF_CFG_MAX_KEY_LEN_IN_BYTES];
-	int i;
+	int banks = GET_MAX_BANKS(accel_dev);
+	int cpus = num_online_cpus();
 	unsigned long val;
 	int instances;
+	int ret;
+	int i;
 
 	if (adf_hw_dev_has_crypto(accel_dev))
 		instances = min(cpus, banks);
 	else
 		instances = 0;
 
-	if (adf_cfg_section_add(accel_dev, ADF_KERNEL_SEC))
+	ret = adf_cfg_section_add(accel_dev, ADF_KERNEL_SEC);
+	if (ret)
 		goto err;
-	if (adf_cfg_section_add(accel_dev, "Accelerator0"))
+
+	ret = adf_cfg_section_add(accel_dev, "Accelerator0");
+	if (ret)
 		goto err;
+
 	for (i = 0; i < instances; i++) {
 		val = i;
 		snprintf(key, sizeof(key), ADF_CY "%d" ADF_RING_BANK_NUM, i);
-		if (adf_cfg_add_key_value_param(accel_dev, ADF_KERNEL_SEC,
-						key, &val, ADF_DEC))
+		ret = adf_cfg_add_key_value_param(accel_dev, ADF_KERNEL_SEC,
+						  key, &val, ADF_DEC);
+		if (ret)
 			goto err;
 
 		snprintf(key, sizeof(key), ADF_CY "%d" ADF_ETRMGR_CORE_AFFINITY,
 			 i);
-		if (adf_cfg_add_key_value_param(accel_dev, ADF_KERNEL_SEC,
-						key, &val, ADF_DEC))
+		ret = adf_cfg_add_key_value_param(accel_dev, ADF_KERNEL_SEC,
+						  key, &val, ADF_DEC);
+		if (ret)
 			goto err;
 
 		snprintf(key, sizeof(key), ADF_CY "%d" ADF_RING_ASYM_SIZE, i);
 		val = 128;
-		if (adf_cfg_add_key_value_param(accel_dev, ADF_KERNEL_SEC,
-						key, &val, ADF_DEC))
+		ret = adf_cfg_add_key_value_param(accel_dev, ADF_KERNEL_SEC,
+						  key, &val, ADF_DEC);
+		if (ret)
 			goto err;
 
 		val = 512;
 		snprintf(key, sizeof(key), ADF_CY "%d" ADF_RING_SYM_SIZE, i);
-		if (adf_cfg_add_key_value_param(accel_dev, ADF_KERNEL_SEC,
-						key, &val, ADF_DEC))
+		ret = adf_cfg_add_key_value_param(accel_dev, ADF_KERNEL_SEC,
+						  key, &val, ADF_DEC);
+		if (ret)
 			goto err;
 
 		val = 0;
 		snprintf(key, sizeof(key), ADF_CY "%d" ADF_RING_ASYM_TX, i);
-		if (adf_cfg_add_key_value_param(accel_dev, ADF_KERNEL_SEC,
-						key, &val, ADF_DEC))
+		ret = adf_cfg_add_key_value_param(accel_dev, ADF_KERNEL_SEC,
+						  key, &val, ADF_DEC);
+		if (ret)
 			goto err;
 
 		val = 2;
 		snprintf(key, sizeof(key), ADF_CY "%d" ADF_RING_SYM_TX, i);
-		if (adf_cfg_add_key_value_param(accel_dev, ADF_KERNEL_SEC,
-						key, &val, ADF_DEC))
+		ret = adf_cfg_add_key_value_param(accel_dev, ADF_KERNEL_SEC,
+						  key, &val, ADF_DEC);
+		if (ret)
 			goto err;
 
 		val = 8;
 		snprintf(key, sizeof(key), ADF_CY "%d" ADF_RING_ASYM_RX, i);
-		if (adf_cfg_add_key_value_param(accel_dev, ADF_KERNEL_SEC,
-						key, &val, ADF_DEC))
+		ret = adf_cfg_add_key_value_param(accel_dev, ADF_KERNEL_SEC,
+						  key, &val, ADF_DEC);
+		if (ret)
 			goto err;
 
 		val = 10;
 		snprintf(key, sizeof(key), ADF_CY "%d" ADF_RING_SYM_RX, i);
-		if (adf_cfg_add_key_value_param(accel_dev, ADF_KERNEL_SEC,
-						key, &val, ADF_DEC))
+		ret = adf_cfg_add_key_value_param(accel_dev, ADF_KERNEL_SEC,
+						  key, &val, ADF_DEC);
+		if (ret)
 			goto err;
 
 		val = ADF_COALESCING_DEF_TIME;
 		snprintf(key, sizeof(key), ADF_ETRMGR_COALESCE_TIMER_FORMAT, i);
-		if (adf_cfg_add_key_value_param(accel_dev, "Accelerator0",
-						key, &val, ADF_DEC))
+		ret = adf_cfg_add_key_value_param(accel_dev, "Accelerator0",
+						  key, &val, ADF_DEC);
+		if (ret)
 			goto err;
 	}
 
 	val = i;
-	if (adf_cfg_add_key_value_param(accel_dev, ADF_KERNEL_SEC,
-					ADF_NUM_CY, &val, ADF_DEC))
+	ret = adf_cfg_add_key_value_param(accel_dev, ADF_KERNEL_SEC, ADF_NUM_CY,
+					  &val, ADF_DEC);
+	if (ret)
 		goto err;
 
 	set_bit(ADF_STATUS_CONFIGURED, &accel_dev->status);
 	return 0;
 err:
 	dev_err(&GET_DEV(accel_dev), "Failed to start QAT accel dev\n");
-	return -EINVAL;
+	return ret;
 }
 EXPORT_SYMBOL_GPL(qat_crypto_dev_config);