From: Zheyu Ma <zheyuma97@gmail.com>
Date: Sat, 5 Mar 2022 14:55:04 +0000 (+0000)
Subject: ethernet: sun: Free the coherent when failing in probing
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=cd3121310e33a2584d7695206a656295d7d893d3;p=linux.git

ethernet: sun: Free the coherent when failing in probing

[ Upstream commit bb77bd31c281f70ec77c9c4f584950a779e05cf8 ]

When the driver fails to register net device, it should free the DMA
region first, and then do other cleanup.

Signed-off-by: Zheyu Ma <zheyuma97@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---

diff --git a/drivers/net/ethernet/sun/sunhme.c b/drivers/net/ethernet/sun/sunhme.c
index 62f81b0d14ed8..b05ee2e0e3051 100644
--- a/drivers/net/ethernet/sun/sunhme.c
+++ b/drivers/net/ethernet/sun/sunhme.c
@@ -3139,7 +3139,7 @@ static int happy_meal_pci_probe(struct pci_dev *pdev,
 	if (err) {
 		printk(KERN_ERR "happymeal(PCI): Cannot register net device, "
 		       "aborting.\n");
-		goto err_out_iounmap;
+		goto err_out_free_coherent;
 	}
 
 	pci_set_drvdata(pdev, hp);
@@ -3172,6 +3172,10 @@ static int happy_meal_pci_probe(struct pci_dev *pdev,
 
 	return 0;
 
+err_out_free_coherent:
+	dma_free_coherent(hp->dma_dev, PAGE_SIZE,
+			  hp->happy_block, hp->hblock_dvma);
+
 err_out_iounmap:
 	iounmap(hp->gregs);