diff options
| author | Chris Ball <cjb@laptop.org> | 2011-03-29 00:46:12 -0400 |
|---|---|---|
| committer | Andi Kleen <ak@linux.intel.com> | 2011-08-01 13:54:43 -0700 |
| commit | 725296955c01285787cdfbaf813298626c9c09ee (patch) | |
| tree | 5eae93a7d2f575efb1928be6748a7e4d353d5c98 /drivers/mmc | |
| parent | 4f1ca069a7660ba29ca9bcc126539982a804b38f (diff) | |
mmc: sdhci-pci: Fix error case in sdhci_pci_probe_slot()
commit 9fdcdbb0d84922e7ccda2f717a04ea62629f7e18 upstream.
If pci_ioremap_bar() fails during probe, we "goto release;" and free the
host, but then we return 0 -- which tells sdhci_pci_probe() that the probe
succeeded. Since we think the probe succeeded, when we unload sdhci we'll
go to sdhci_pci_remove_slot() and it will try to dereference slot->host,
which is now NULL because we freed it in the error path earlier.
The patch simply sets ret appropriately, so that sdhci_pci_probe() will
detect the failure immediately and bail out.
Signed-off-by: Chris Ball <cjb@laptop.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/host/sdhci-pci.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/mmc/host/sdhci-pci.c b/drivers/mmc/host/sdhci-pci.c index 65483fdea45b..657809aff2e4 100644 --- a/drivers/mmc/host/sdhci-pci.c +++ b/drivers/mmc/host/sdhci-pci.c @@ -653,6 +653,7 @@ static struct sdhci_pci_slot * __devinit sdhci_pci_probe_slot( host->ioaddr = pci_ioremap_bar(pdev, bar); if (!host->ioaddr) { dev_err(&pdev->dev, "failed to remap registers\n"); + ret = -ENOMEM; goto release; } |