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author | Stefan Richter <stefanr@s5r6.in-berlin.de> | 2010-07-23 13:02:54 +0200 |
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committer | Stefan Richter <stefanr@s5r6.in-berlin.de> | 2010-07-23 13:36:28 +0200 |
commit | 0c9ae701ae1caf657326db22d61074b40a747c9d (patch) | |
tree | 97eccc9b9941e71c471b5b3f32450c89f476093f /include/linux/firewire-cdev.h | |
parent | cc550216ae9a2993ef3973464714dc1a39ab1f86 (diff) |
firewire: core: fix upper bound of possible CSR allocations
region->end is defined as an upper bound of the requested address range,
exclusive --- i.e. as an address outside of the range in which the
requested CSR is to be placed.
Hence 0x0001,0000,0000,0000 is the biggest valid region->end, not
0x0000,ffff,ffff,fffc like the current check asserted.
For simplicity, the fix drops the region->end & 3 test because there is
no actual problem with these bits set in region->end. The allocated
address range will be quadlet aligned and of a size of multiple quadlets
due to the checks for region->start & 3 and handler->length & 3 alone.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Diffstat (limited to 'include/linux/firewire-cdev.h')
0 files changed, 0 insertions, 0 deletions