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>

diff --git a/drivers/crypto/cavium/nitrox/nitrox_main.c b/drivers/crypto/cavium/nitrox/nitrox_main.c
index 6af05df..96bc7b5 100644 (file)
--- 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;
 }