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| author |   Christophe JAILLET <christophe.jaillet@wanadoo.fr> | 2021-06-05 14:55:56 +0200 |
|---|---|---|
| committer |   Herbert Xu <herbert@gondor.apana.org.au> | 2021-06-11 15:08:06 +0800 |
| commit | 0dc64297c8ac98503a7c7621b3c78e151deb75b6 (patch) | |
| tree | 7432f5aaf802c9cae62ae62f5d13968b05a690ab | |
| parent | crypto: sm2 - fix a memory leak in sm2 (diff) | |
| download | linux-dev-0dc64297c8ac98503a7c7621b3c78e151deb75b6.tar.xz linux-dev-0dc64297c8ac98503a7c7621b3c78e151deb75b6.zip | |
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: 14fa93cdcd9b ("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>
| -rw-r--r-- | drivers/crypto/cavium/nitrox/nitrox_main.c | 18 |
1 files changed, 8 insertions, 10 deletions
diff --git a/drivers/crypto/cavium/nitrox/nitrox_main.c b/drivers/crypto/cavium/nitrox/nitrox_main.c index 6af05df281a9..96bc7b5c6532 100644 --- a/drivers/crypto/cavium/nitrox/nitrox_main.c +++ b/drivers/crypto/cavium/nitrox/nitrox_main.c @@ -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 @@ crypto_fail: 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; } |