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| author | Alexey Khoroshilov <khoroshilov@ispras.ru> | 2015-08-24 10:18:38 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-10-05 05:10:01 +0100 |
| commit | 41ada9df7f340998e810dcda21a00da5f75c4147 (patch) | |
| tree | f4f36526582dbd6462d01ac13996fc1fe3131343 /drivers/mcb/mcb-pci.c | |
| parent | 84dfe03ae2112b817d5221575d59ba616dc0c3e2 (diff) | |
| download | linux-41ada9df7f340998e810dcda21a00da5f75c4147.tar.gz linux-41ada9df7f340998e810dcda21a00da5f75c4147.tar.bz2 linux-41ada9df7f340998e810dcda21a00da5f75c4147.zip | |
mcb: Fix error handling in mcb_pci_probe()
If a MCB PCI Carrier device is IO mapped insted of memory-mapped,
the memory of the PCI device is still not unmapped.
Also the patch adds deallocation of the bus
if chameleon_parse_cells() fails.
Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/mcb/mcb-pci.c')
| -rw-r--r-- | drivers/mcb/mcb-pci.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/mcb/mcb-pci.c b/drivers/mcb/mcb-pci.c index de36237d7c6b..051645498b53 100644 --- a/drivers/mcb/mcb-pci.c +++ b/drivers/mcb/mcb-pci.c @@ -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 out_release; + goto out_iounmap; } pci_set_drvdata(pdev, priv); @@ -89,7 +89,7 @@ static int mcb_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id) ret = chameleon_parse_cells(priv->bus, priv->mapbase, priv->base); if (ret < 0) - goto out_iounmap; + goto out_mcb_bus; num_cells = ret; dev_dbg(&pdev->dev, "Found %d cells\n", num_cells); @@ -98,6 +98,8 @@ static int mcb_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id) return 0; +out_mcb_bus: + mcb_release_bus(priv->bus); out_iounmap: iounmap(priv->base); out_release: |