linux-kernel - [PATCH 2/2] eni_vdpa: Simplify 'eni_vdpa

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Message-Id: <02045bdcbbb25f79bae4827f66029cfcddc90381.1636301587.git.christophe.jaillet@wanadoo.fr>
Date:   Sun,  7 Nov 2021 17:14:56 +0100
From:   Christophe JAILLET <christophe.jaillet@...adoo.fr>
To:     mst@...hat.com, jasowang@...hat.com, wuzongyong@...ux.alibaba.com,
        arnd@...db.de
Cc:     virtualization@...ts.linux-foundation.org,
        linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org,
        Christophe JAILLET <christophe.jaillet@...adoo.fr>
Subject: [PATCH 2/2] eni_vdpa: Simplify 'eni_vdpa_probe()'

When 'pcim_enable_device()' is used, some resources become automagically
managed.
There is no need to call 'pci_free_irq_vectors()' when the driver is
removed. The same will already be done by 'pcim_release()'.

Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>
---
Leaving the 'pci_free_irq_vectors()' call is harmless.
---
 drivers/vdpa/alibaba/eni_vdpa.c | 12 ------------
 1 file changed, 12 deletions(-)

diff --git a/drivers/vdpa/alibaba/eni_vdpa.c b/drivers/vdpa/alibaba/eni_vdpa.c
index 12b3db6b4517..3db686436628 100644
--- a/drivers/vdpa/alibaba/eni_vdpa.c
+++ b/drivers/vdpa/alibaba/eni_vdpa.c
@@ -450,11 +450,6 @@ static u16 eni_vdpa_get_num_queues(struct eni_vdpa *eni_vdpa)
 	return num;
 }
 
-static void eni_vdpa_free_irq_vectors(void *data)
-{
-	pci_free_irq_vectors(data);
-}
-
 static int eni_vdpa_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 {
 	struct device *dev = &pdev->dev;
@@ -488,13 +483,6 @@ static int eni_vdpa_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	eni_vdpa->vdpa.dma_dev = &pdev->dev;
 	eni_vdpa->queues = eni_vdpa_get_num_queues(eni_vdpa);
 
-	ret = devm_add_action_or_reset(dev, eni_vdpa_free_irq_vectors, pdev);
-	if (ret) {
-		ENI_ERR(pdev,
-			"failed for adding devres for freeing irq vectors\n");
-		goto err;
-	}
-
 	eni_vdpa->vring = devm_kcalloc(&pdev->dev, eni_vdpa->queues,
 				      sizeof(*eni_vdpa->vring),
 				      GFP_KERNEL);
-- 
2.30.2