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| author | Stephen Warren <swarren@nvidia.com> | 2014-08-11 16:09:28 -0600 |
|---|---|---|
| committer | Anatolij Gustschin <agust@denx.de> | 2014-08-14 11:38:47 +0200 |
| commit | d878c9a932eae626aced58128357fc6155f88739 (patch) | |
| tree | ad1b5e6967b3a7d9b141d3fd89104f66ddb53839 /arch/powerpc/cpu | |
| parent | 686dca0fc4eb077b089c7507f899097d001c8ce3 (diff) | |
| download | u-boot-imx-d878c9a932eae626aced58128357fc6155f88739.zip u-boot-imx-d878c9a932eae626aced58128357fc6155f88739.tar.gz u-boot-imx-d878c9a932eae626aced58128357fc6155f88739.tar.bz2 | |
pci: fix overflow in __pci_hose_bus_to_phys w/ large RAM
If a 32-bit system has 2GB of RAM, and the base address of that RAM is
2GB, then start+size will overflow a 32-bit value (to a value of 0).
To avoid such an overflow, convert __pci_hose_bus_to_phys() to calculate
the offset of a bus address into a PCI region, rather than comparing a
bus address against the end of a PCI region.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Diffstat (limited to 'arch/powerpc/cpu')
0 files changed, 0 insertions, 0 deletions