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| author | Johannes Thumshirn <johannes.thumshirn@men.de> | 2015-01-12 16:26:32 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-02-03 15:48:51 -0800 |
| commit | a48742bce1011d2109f6d6cbda00445aee049fd4 (patch) | |
| tree | 39191dfa9b502119ddf9caa45a414486817232a2 /drivers/mcb | |
| parent | d909f4315b99e5743041eeb01a2552fcbb125c89 (diff) | |
| download | linux-stable-a48742bce1011d2109f6d6cbda00445aee049fd4.tar.gz linux-stable-a48742bce1011d2109f6d6cbda00445aee049fd4.tar.bz2 linux-stable-a48742bce1011d2109f6d6cbda00445aee049fd4.zip | |
mcb: Fix error path of mcb_pci_probe
If a MCB PCI Carrier device is IO mapped insted of memory-mapped (which is
currently unsupported by the upstream driver) the probe function bails out
with -ENOTSUPP.
In this case the memory of the PCI device was not unmapped.
Also rename error label to reflect what will happen at the destination (suggested
by Julia Lawall <julia.lawall@lip6.fr>.
Signed-off-by: Johannes Thumshirn <johannes.thumshirn@men.de>
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/mcb')
| -rw-r--r-- | drivers/mcb/mcb-pci.c | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/drivers/mcb/mcb-pci.c b/drivers/mcb/mcb-pci.c index 5e1bd5db02c8..0af7361e377f 100644 --- a/drivers/mcb/mcb-pci.c +++ b/drivers/mcb/mcb-pci.c @@ -51,7 +51,7 @@ static int mcb_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id) priv->mapbase = pci_resource_start(pdev, 0); if (!priv->mapbase) { dev_err(&pdev->dev, "No PCI resource\n"); - goto err_start; + goto out_disable; } res = request_mem_region(priv->mapbase, CHAM_HEADER_SIZE, @@ -59,14 +59,14 @@ static int mcb_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id) if (IS_ERR(res)) { dev_err(&pdev->dev, "Failed to request PCI memory\n"); ret = PTR_ERR(res); - goto err_start; + goto out_disable; } priv->base = ioremap(priv->mapbase, CHAM_HEADER_SIZE); if (!priv->base) { dev_err(&pdev->dev, "Cannot ioremap\n"); ret = -ENOMEM; - goto err_ioremap; + goto out_release; } flags = pci_resource_flags(pdev, 0); @@ -74,7 +74,7 @@ static int mcb_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id) ret = -ENOTSUPP; dev_err(&pdev->dev, "IO mapped PCI devices are not supported\n"); - goto err_ioremap; + goto out_release; } pci_set_drvdata(pdev, priv); @@ -82,14 +82,14 @@ static int mcb_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id) priv->bus = mcb_alloc_bus(&pdev->dev); if (IS_ERR(priv->bus)) { ret = PTR_ERR(priv->bus); - goto err_drvdata; + goto out_iounmap; } priv->bus->get_irq = mcb_pci_get_irq; ret = chameleon_parse_cells(priv->bus, priv->mapbase, priv->base); if (ret < 0) - goto err_drvdata; + goto out_iounmap; num_cells = ret; dev_dbg(&pdev->dev, "Found %d cells\n", num_cells); @@ -98,11 +98,11 @@ static int mcb_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id) return 0; -err_drvdata: +out_iounmap: iounmap(priv->base); -err_ioremap: +out_release: pci_release_region(pdev, 0); -err_start: +out_disable: pci_disable_device(pdev); return ret; } |