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author | Dan Williams <dan.j.williams@intel.com> | 2009-09-08 14:32:24 -0700 |
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committer | Dan Williams <dan.j.williams@intel.com> | 2009-09-08 14:32:24 -0700 |
commit | a348a7e6fdbcd2d5192a09719a479bb238fde727 (patch) | |
tree | 5ff94185f4e5a810777469d7fe7832a8ec2d3430 /drivers/pci/bus.c | |
parent | 808347f6a31792079e345ec865e9cfcb6e8ae6b2 (diff) | |
parent | 28d0325ce6e0a52f53d8af687e6427fee59004d3 (diff) | |
download | kernel-crypto-a348a7e6fdbcd2d5192a09719a479bb238fde727.tar.gz kernel-crypto-a348a7e6fdbcd2d5192a09719a479bb238fde727.tar.xz kernel-crypto-a348a7e6fdbcd2d5192a09719a479bb238fde727.zip |
Merge commit 'v2.6.31-rc1' into dmaengine
Diffstat (limited to 'drivers/pci/bus.c')
-rw-r--r-- | drivers/pci/bus.c | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/drivers/pci/bus.c b/drivers/pci/bus.c index 97a8194063b..cef28a79103 100644 --- a/drivers/pci/bus.c +++ b/drivers/pci/bus.c @@ -41,9 +41,14 @@ pci_bus_alloc_resource(struct pci_bus *bus, struct resource *res, void *alignf_data) { int i, ret = -ENOMEM; + resource_size_t max = -1; type_mask |= IORESOURCE_IO | IORESOURCE_MEM; + /* don't allocate too high if the pref mem doesn't support 64bit*/ + if (!(res->flags & IORESOURCE_MEM_64)) + max = PCIBIOS_MAX_MEM_32; + for (i = 0; i < PCI_BUS_NUM_RESOURCES; i++) { struct resource *r = bus->resource[i]; if (!r) @@ -62,7 +67,7 @@ pci_bus_alloc_resource(struct pci_bus *bus, struct resource *res, /* Ok, try it out.. */ ret = allocate_resource(r, res, size, r->start ? : min, - -1, align, + max, align, alignf, alignf_data); if (ret == 0) break; @@ -201,13 +206,18 @@ void pci_enable_bridges(struct pci_bus *bus) * Walk the given bus, including any bridged devices * on buses under this bus. Call the provided callback * on each device found. + * + * We check the return of @cb each time. If it returns anything + * other than 0, we break out. + * */ -void pci_walk_bus(struct pci_bus *top, void (*cb)(struct pci_dev *, void *), +void pci_walk_bus(struct pci_bus *top, int (*cb)(struct pci_dev *, void *), void *userdata) { struct pci_dev *dev; struct pci_bus *bus; struct list_head *next; + int retval; bus = top; down_read(&pci_bus_sem); @@ -231,8 +241,10 @@ void pci_walk_bus(struct pci_bus *top, void (*cb)(struct pci_dev *, void *), /* Run device routines with the device locked */ down(&dev->dev.sem); - cb(dev, userdata); + retval = cb(dev, userdata); up(&dev->dev.sem); + if (retval) + break; } up_read(&pci_bus_sem); } |