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authorClemens Ladisch <clemens@ladisch.de>2010-04-12 10:35:44 +0200
committerStefan Richter <stefanr@s5r6.in-berlin.de>2010-04-19 19:58:32 +0200
commite1393667be574807a13bfaf1bb471f5fd1a5287b (patch)
tree5f2084f1a5099062cb27e74765ec3cd8a69c3489 /security/tomoyo
parent2608203daf5f87311c6e5d36e5de5efcb14aab24 (diff)
downloadlinux-e1393667be574807a13bfaf1bb471f5fd1a5287b.tar.bz2
firewire: ohci: wait for local CSR lock access to finish
Add a loop to wait for the controller to finish a locally-initiated CSR lock operation. Google shows some occurrences of the "swap not done yet" message which might indicate that some OHCI controllers are not fast enough to do the lock/swap in the time needed for one PCI access. This also correctly handles the case where the lock operation did not finish, instead of silently returning an uninitialized value. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Diffstat (limited to 'security/tomoyo')
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