From: Qi Zhang <qi.z.zhang@intel.com>
Date: Tue, 25 Sep 2018 02:34:31 +0000 (+0800)
Subject: net/i40e/base: properly clean resources
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=02016804ed5e6a46f9162737bcdc78a3780332f5;p=dpdk.git

net/i40e/base: properly clean resources

Allocated resources were not freed in the event of a failure in
i40e_init_lan_hmc function. This patch gracefully handles the fail
case after initializing the lan hmc.

Cc: stable@dpdk.org

Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
Acked-by: Beilei Xing <beilei.xing@intel.com>
---

diff --git a/drivers/net/i40e/base/i40e_lan_hmc.c b/drivers/net/i40e/base/i40e_lan_hmc.c
index 510c11826c..0afee49b13 100644
--- a/drivers/net/i40e/base/i40e_lan_hmc.c
+++ b/drivers/net/i40e/base/i40e_lan_hmc.c
@@ -114,7 +114,7 @@ enum i40e_status_code i40e_init_lan_hmc(struct i40e_hw *hw, u32 txq_num,
 		ret_code = I40E_ERR_INVALID_HMC_OBJ_COUNT;
 		DEBUGOUT3("i40e_init_lan_hmc: Tx context: asks for 0x%x but max allowed is 0x%x, returns error %d\n",
 			  txq_num, obj->max_cnt, ret_code);
-		goto init_lan_hmc_out;
+		goto free_hmc_out;
 	}
 
 	/* aggregate values into the full LAN object for later */
@@ -137,7 +137,7 @@ enum i40e_status_code i40e_init_lan_hmc(struct i40e_hw *hw, u32 txq_num,
 		ret_code = I40E_ERR_INVALID_HMC_OBJ_COUNT;
 		DEBUGOUT3("i40e_init_lan_hmc: Rx context: asks for 0x%x but max allowed is 0x%x, returns error %d\n",
 			  rxq_num, obj->max_cnt, ret_code);
-		goto init_lan_hmc_out;
+		goto free_hmc_out;
 	}
 
 	/* aggregate values into the full LAN object for later */
@@ -160,7 +160,7 @@ enum i40e_status_code i40e_init_lan_hmc(struct i40e_hw *hw, u32 txq_num,
 		ret_code = I40E_ERR_INVALID_HMC_OBJ_COUNT;
 		DEBUGOUT3("i40e_init_lan_hmc: FCoE context: asks for 0x%x but max allowed is 0x%x, returns error %d\n",
 			  fcoe_cntx_num, obj->max_cnt, ret_code);
-		goto init_lan_hmc_out;
+		goto free_hmc_out;
 	}
 
 	/* aggregate values into the full LAN object for later */
@@ -183,7 +183,7 @@ enum i40e_status_code i40e_init_lan_hmc(struct i40e_hw *hw, u32 txq_num,
 		ret_code = I40E_ERR_INVALID_HMC_OBJ_COUNT;
 		DEBUGOUT3("i40e_init_lan_hmc: FCoE filter: asks for 0x%x but max allowed is 0x%x, returns error %d\n",
 			  fcoe_filt_num, obj->max_cnt, ret_code);
-		goto init_lan_hmc_out;
+		goto free_hmc_out;
 	}
 
 	/* aggregate values into the full LAN object for later */
@@ -204,7 +204,7 @@ enum i40e_status_code i40e_init_lan_hmc(struct i40e_hw *hw, u32 txq_num,
 					  (sizeof(struct i40e_hmc_sd_entry) *
 					  hw->hmc.sd_table.sd_cnt));
 		if (ret_code)
-			goto init_lan_hmc_out;
+			goto free_hmc_out;
 		hw->hmc.sd_table.sd_entry =
 			(struct i40e_hmc_sd_entry *)hw->hmc.sd_table.addr.va;
 	}
@@ -212,6 +212,11 @@ enum i40e_status_code i40e_init_lan_hmc(struct i40e_hw *hw, u32 txq_num,
 	full_obj->size = l2fpm_size;
 
 init_lan_hmc_out:
+	return ret_code;
+free_hmc_out:
+	if (hw->hmc.hmc_obj_virt_mem.va)
+		i40e_free_virt_mem(hw, &hw->hmc.hmc_obj_virt_mem);
+
 	return ret_code;
 }