diff options
| author | Michael Ellerman <michael@ellerman.id.au> | 2007-04-05 09:19:08 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2007-05-03 04:02:37 +0200 |
| commit | 65891215e6b822c368fb3f36abf129ed48af8be0 (patch) | |
| tree | 6cc1de94ca66a8f627775d1ddff3600ee8236ed3 | |
| parent | MSI: Add an arch_msi_check_device() (diff) | |
| download | linux-65891215e6b822c368fb3f36abf129ed48af8be0.tar.xz linux-65891215e6b822c368fb3f36abf129ed48af8be0.zip | |
PCI: Create alloc_pci_dev(), the one true way to create a struct pci_dev
There are currently several places in the kernel where we kmalloc()
a struct pci_dev and start initialising it. It'd be preferable to
have an allocator so we can ensure the pci_dev is correctly initialised
in one place.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -rw-r--r-- | drivers/pci/probe.c | 15 | ||||
| -rw-r--r-- | include/linux/pci.h | 2 |
2 files changed, 17 insertions, 0 deletions
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index 629edf39a07d..70d37bbf09bb 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c @@ -846,6 +846,21 @@ static void pci_release_bus_bridge_dev(struct device *dev) kfree(dev); } +struct pci_dev *alloc_pci_dev(void) +{ + struct pci_dev *dev; + + dev = kzalloc(sizeof(struct pci_dev), GFP_KERNEL); + if (!dev) + return NULL; + + INIT_LIST_HEAD(&dev->global_list); + INIT_LIST_HEAD(&dev->bus_list); + + return dev; +} +EXPORT_SYMBOL(alloc_pci_dev); + /* * Read the config data for a PCI device, sanity-check it * and fill in the dev structure... diff --git a/include/linux/pci.h b/include/linux/pci.h index 99d45751830c..c02074785d40 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -193,6 +193,8 @@ struct pci_dev { #endif }; +extern struct pci_dev *alloc_pci_dev(void); + #define pci_dev_g(n) list_entry(n, struct pci_dev, global_list) #define pci_dev_b(n) list_entry(n, struct pci_dev, bus_list) #define to_pci_dev(n) container_of(n, struct pci_dev, dev) |