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authorGravatar Zheyu Ma <zheyuma97@gmail.com> 2022-03-05 14:55:04 +0000
committerGravatar David S. Miller <davem@davemloft.net> 2022-03-07 11:32:22 +0000
commitbb77bd31c281f70ec77c9c4f584950a779e05cf8 (patch)
tree89e969bdb87896f5f2f67c0223ab378eee8a96cd
parentnet: lantiq_xrx200: fix use after free bug (diff)
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ethernet: sun: Free the coherent when failing in probing
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>
-rw-r--r--drivers/net/ethernet/sun/sunhme.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/net/ethernet/sun/sunhme.c b/drivers/net/ethernet/sun/sunhme.c
index ad9029ae6848..77e5dffb558f 100644
--- a/drivers/net/ethernet/sun/sunhme.c
+++ b/drivers/net/ethernet/sun/sunhme.c
@@ -3146,7 +3146,7 @@ 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);
@@ -3179,6 +3179,10 @@ 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);