common/iavf: fix ARQ resource leak

[ upstream commit 395d41f ]

In the iavf_init_arq function, if an exception occurs in the
iavf_config_arq_regs function, and the previously applied ARQ (Admin
Receive Queue) bufs resource is released. This patch maintains the same
modification as the iavf_init_asq function to roll back resources.

Fixes: 87aca6d ("net/iavf/base: fix command buffer memory leak")

Signed-off-by: Qiming Chen <chenqiming_huawei@163.com>
Acked-by: Qi Zhang <qi.z.zhang@intel.com>

drivers/net/iavf/base/iavf_adminq.c

@@ -431,14 +431,18 @@ enum iavf_status_code iavf_init_arq(struct iavf_hw *hw)
 	/* initialize base registers */
 	ret_code = iavf_config_arq_regs(hw);
 	if (ret_code != IAVF_SUCCESS)
-		goto init_adminq_free_rings;
+		goto init_config_regs;
 
 	/* success! */
 	hw->aq.arq.count = hw->aq.num_arq_entries;
 	goto init_adminq_exit;
 
 init_adminq_free_rings:
 	iavf_free_adminq_arq(hw);
+	return ret_code;
+
+init_config_regs:
+	iavf_free_arq_bufs(hw);
 
 init_adminq_exit:
 	return ret_code;