openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

crypto: cavium/nitrox - Fix an error rhandling path in 'nitrox_probe()' 

If an error occurs after a successful 'ioremap()' call, it must be undone
by a corresponding 'iounmap()' call, as already done in the remove
function.
Add a 'pf_sw_fail' label in the error handling path and add the missing
'iounmap()'.

While at it, also add a 'flr_fail' label in the error handling path and use
it to avoid some code duplication.

Fixes: 14fa93cdcd ("crypto: cavium - Add support for CNN55XX adapters.")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Christophe JAILLET 2021-06-05 14:55:56 +02:00 committed by Herbert Xu
parent 5cd259ca5d
commit 0dc64297c8
1 changed files with 8 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
drivers/crypto/cavium/nitrox/nitrox_main.c
View File

@ -424,8 +424,7 @@ static int nitrox_probe(struct pci_dev *pdev,
err = nitrox_device_flr(pdev);
if (err) {
dev_err(&pdev->dev, "FLR failed\n");
pci_disable_device(pdev);
return err;
goto flr_fail;
}
if (!dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64))) {
@ -434,17 +433,13 @@ static int nitrox_probe(struct pci_dev *pdev,
err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
if (err) {
dev_err(&pdev->dev, "DMA configuration failed\n");
pci_disable_device(pdev);
return err;
goto flr_fail;
}
}
err = pci_request_mem_regions(pdev, nitrox_driver_name);
if (err) {
pci_disable_device(pdev);
dev_err(&pdev->dev, "Failed to request mem regions!\n");
return err;
}
if (err)
goto flr_fail;
pci_set_master(pdev);
ndev = kzalloc(sizeof(*ndev), GFP_KERNEL);
@ -480,7 +475,7 @@ static int nitrox_probe(struct pci_dev *pdev,
err = nitrox_pf_sw_init(ndev);
if (err)
goto ioremap_err;
goto pf_sw_fail;
err = nitrox_pf_hw_init(ndev);
if (err)
@ -510,12 +505,15 @@ static int nitrox_probe(struct pci_dev *pdev,
smp_mb__after_atomic();
pf_hw_fail:
nitrox_pf_sw_cleanup(ndev);
pf_sw_fail:
iounmap(ndev->bar_addr);
ioremap_err:
nitrox_remove_from_devlist(ndev);
kfree(ndev);
pci_set_drvdata(pdev, NULL);
ndev_fail:
pci_release_mem_regions(pdev);
flr_fail:
pci_disable_device(pdev);
return err;
}