[PATCH AUTOSEL for 4.14 039/135] net: hns3: Fix a misuse to devm_free_irq

From: alexander . levin
Date: Thu Dec 07 2017 - 10:46:57 EST


From: qumingguang <qumingguang@xxxxxxxxxx>

[ Upstream commit ae064e6123f89f90af7e4ea190cc0c612643ca93 ]

we should use free_irq to free the nic irq during the unloading time.
because we use request_irq to apply it when nic up. It will crash if
up net device after reset the port. This patch fixes the issue.

Signed-off-by: qumingguang <qumingguang@xxxxxxxxxx>
Signed-off-by: Lipeng <lipeng321@xxxxxxxxxx>
Signed-off-by: Yunsheng Lin <linyunsheng@xxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxx>
---
drivers/net/ethernet/hisilicon/hns3/hns3pf/hns3_enet.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hns3_enet.c
index 35369e1c8036..981fc62ce043 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hns3_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hns3_enet.c
@@ -2460,9 +2460,8 @@ static int hns3_nic_uninit_vector_data(struct hns3_nic_priv *priv)
(void)irq_set_affinity_hint(
priv->tqp_vector[i].vector_irq,
NULL);
- devm_free_irq(&pdev->dev,
- priv->tqp_vector[i].vector_irq,
- &priv->tqp_vector[i]);
+ free_irq(priv->tqp_vector[i].vector_irq,
+ &priv->tqp_vector[i]);
}

priv->ring_data[i].ring->irq_init_flag = HNS3_VECTOR_NOT_INITED;
--
2.11.0