linux-kernel - [PATCH for-rc 4/9] RDMA/hns: Fix unmatch exception handling when init eq table fails

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Message-ID: <20240705085937.1644229-5-huangjunxian6@hisilicon.com>
Date: Fri, 5 Jul 2024 16:59:32 +0800
From: Junxian Huang <huangjunxian6@...ilicon.com>
To: <jgg@...pe.ca>, <leon@...nel.org>
CC: <linux-rdma@...r.kernel.org>, <linuxarm@...wei.com>,
	<linux-kernel@...r.kernel.org>, <huangjunxian6@...ilicon.com>
Subject: [PATCH for-rc 4/9] RDMA/hns: Fix unmatch exception handling when init eq table fails

The hw ctx should be destroyed when init eq table fails.

Fixes: a5073d6054f7 ("RDMA/hns: Add eq support of hip08")
Signed-off-by: Junxian Huang <huangjunxian6@...ilicon.com>
---
 drivers/infiniband/hw/hns/hns_roce_hw_v2.c | 25 +++++++++++-----------
 1 file changed, 13 insertions(+), 12 deletions(-)

diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
index f73de06a3ca5..6cdeafef800a 100644
--- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
+++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
@@ -6373,9 +6373,16 @@ static void hns_roce_v2_int_mask_enable(struct hns_roce_dev *hr_dev,
 	roce_write(hr_dev, ROCEE_VF_ABN_INT_CFG_REG, enable_flag);
 }
 
-static void hns_roce_v2_destroy_eqc(struct hns_roce_dev *hr_dev, u32 eqn)
+static void free_eq_buf(struct hns_roce_dev *hr_dev, struct hns_roce_eq *eq)
+{
+	hns_roce_mtr_destroy(hr_dev, &eq->mtr);
+}
+
+static void hns_roce_v2_destroy_eqc(struct hns_roce_dev *hr_dev,
+				    struct hns_roce_eq *eq)
 {
 	struct device *dev = hr_dev->dev;
+	int eqn = eq->eqn;
 	int ret;
 	u8 cmd;
 
@@ -6386,12 +6393,9 @@ static void hns_roce_v2_destroy_eqc(struct hns_roce_dev *hr_dev, u32 eqn)
 
 	ret = hns_roce_destroy_hw_ctx(hr_dev, cmd, eqn & HNS_ROCE_V2_EQN_M);
 	if (ret)
-		dev_err(dev, "[mailbox cmd] destroy eqc(%u) failed.\n", eqn);
-}
+		dev_err(dev, "[mailbox cmd] destroy eqc(%d) failed.\n", eqn);
 
-static void free_eq_buf(struct hns_roce_dev *hr_dev, struct hns_roce_eq *eq)
-{
-	hns_roce_mtr_destroy(hr_dev, &eq->mtr);
+	free_eq_buf(hr_dev, eq);
 }
 
 static void init_eq_config(struct hns_roce_dev *hr_dev, struct hns_roce_eq *eq)
@@ -6738,7 +6742,7 @@ static int hns_roce_v2_init_eq_table(struct hns_roce_dev *hr_dev)
 
 err_create_eq_fail:
 	for (i -= 1; i >= 0; i--)
-		free_eq_buf(hr_dev, &eq_table->eq[i]);
+		hns_roce_v2_destroy_eqc(hr_dev, &eq_table->eq[i]);
 	kfree(eq_table->eq);
 
 	return ret;
@@ -6758,11 +6762,8 @@ static void hns_roce_v2_cleanup_eq_table(struct hns_roce_dev *hr_dev)
 	__hns_roce_free_irq(hr_dev);
 	destroy_workqueue(hr_dev->irq_workq);
 
-	for (i = 0; i < eq_num; i++) {
-		hns_roce_v2_destroy_eqc(hr_dev, i);
-
-		free_eq_buf(hr_dev, &eq_table->eq[i]);
-	}
+	for (i = 0; i < eq_num; i++)
+		hns_roce_v2_destroy_eqc(hr_dev, &eq_table->eq[i]);
 
 	kfree(eq_table->eq);
 }
-- 
2.33.0