diff options
| author | Kulikov Vasiliy <segooon@gmail.com> | 2010-08-03 17:44:16 +0200 |
|---|---|---|
| committer | Matthew Garrett <mjg@redhat.com> | 2010-08-16 17:53:44 +0200 |
| commit | 5629236b31239dbaa182cb7eb39aad4d62278f7c (patch) | |
| tree | 7d89214f205ce5a98bca13a018f42eb308e4e345 | |
| parent | Linux 2.6.36-rc1 (diff) | |
| download | linux-5629236b31239dbaa182cb7eb39aad4d62278f7c.tar.xz linux-5629236b31239dbaa182cb7eb39aad4d62278f7c.zip | |
x86: intel_ips: do not use PCI resources before pci_enable_device()
IRQ and resource[] may not have correct values until
after PCI hotplug setup occurs at pci_enable_device() time.
The semantic match that finds this problem is as follows:
// <smpl>
@@
identifier x;
identifier request ~= "pci_request.*|pci_resource.*";
@@
(
* x->irq
|
* x->resource
|
* request(x, ...)
)
...
*pci_enable_device(x)
// </smpl>
Signed-off-by: Kulikov Vasiliy <segooon@gmail.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
| -rw-r--r-- | drivers/platform/x86/intel_ips.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/drivers/platform/x86/intel_ips.c b/drivers/platform/x86/intel_ips.c index afe82e50dfea..fad59b69a69c 100644 --- a/drivers/platform/x86/intel_ips.c +++ b/drivers/platform/x86/intel_ips.c @@ -1432,6 +1432,12 @@ static int ips_probe(struct pci_dev *dev, const struct pci_device_id *id) spin_lock_init(&ips->turbo_status_lock); + ret = pci_enable_device(dev); + if (ret) { + dev_err(&dev->dev, "can't enable PCI device, aborting\n"); + goto error_free; + } + if (!pci_resource_start(dev, 0)) { dev_err(&dev->dev, "TBAR not assigned, aborting\n"); ret = -ENXIO; @@ -1444,11 +1450,6 @@ static int ips_probe(struct pci_dev *dev, const struct pci_device_id *id) goto error_free; } - ret = pci_enable_device(dev); - if (ret) { - dev_err(&dev->dev, "can't enable PCI device, aborting\n"); - goto error_free; - } ips->regmap = ioremap(pci_resource_start(dev, 0), pci_resource_len(dev, 0)); |