netdev - [PATCH net,v2] intel/igbvf: free irq on the error path in igbvf_request

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Message-ID: <20221122022852.1384927-1-cuigaosheng1@huawei.com>
Date:   Tue, 22 Nov 2022 10:28:52 +0800
From:   Gaosheng Cui <cuigaosheng1@...wei.com>
To:     <jesse.brandeburg@...el.com>, <anthony.l.nguyen@...el.com>,
        <davem@...emloft.net>, <edumazet@...gle.com>, <kuba@...nel.org>,
        <pabeni@...hat.com>, <alexander.h.duyck@...el.com>,
        <jeffrey.t.kirsher@...el.com>, <cuigaosheng1@...wei.com>
CC:     <intel-wired-lan@...ts.osuosl.org>, <netdev@...r.kernel.org>
Subject: [PATCH net,v2] intel/igbvf: free irq on the error path in igbvf_request_msix()

In igbvf_request_msix(), irqs have not been freed on the err path,
we need to free it. Fix it.

Fixes: d4e0fe01a38a ("igbvf: add new driver to support 82576 virtual functions")
Signed-off-by: Gaosheng Cui <cuigaosheng1@...wei.com>
Reviewed-by: Maciej Fijalkowski <maciej.fijalkowski@...el.com>
---
 drivers/net/ethernet/intel/igbvf/netdev.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/intel/igbvf/netdev.c b/drivers/net/ethernet/intel/igbvf/netdev.c
index 3a32809510fc..72cb1b56e9f2 100644
--- a/drivers/net/ethernet/intel/igbvf/netdev.c
+++ b/drivers/net/ethernet/intel/igbvf/netdev.c
@@ -1074,7 +1074,7 @@ static int igbvf_request_msix(struct igbvf_adapter *adapter)
 			  igbvf_intr_msix_rx, 0, adapter->rx_ring->name,
 			  netdev);
 	if (err)
-		goto out;
+		goto free_irq_tx;
 
 	adapter->rx_ring->itr_register = E1000_EITR(vector);
 	adapter->rx_ring->itr_val = adapter->current_itr;
@@ -1083,10 +1083,14 @@ static int igbvf_request_msix(struct igbvf_adapter *adapter)
 	err = request_irq(adapter->msix_entries[vector].vector,
 			  igbvf_msix_other, 0, netdev->name, netdev);
 	if (err)
-		goto out;
+		goto free_irq_rx;
 
 	igbvf_configure_msix(adapter);
 	return 0;
+free_irq_rx:
+	free_irq(adapter->msix_entries[--vector].vector, netdev);
+free_irq_tx:
+	free_irq(adapter->msix_entries[--vector].vector, netdev);
 out:
 	return err;
 }
-- 
2.25.1