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(parent: e41f8d7) | patch
firewire: ohci: access bus_seconds atomically
authorStefan Richter <stefanr@s5r6.in-berlin.de>
Thu, 4 Jun 2009 19:08:43 +0000 (21:08 +0200)
committerStefan Richter <stefanr@s5r6.in-berlin.de>
Fri, 5 Jun 2009 14:26:17 +0000 (16:26 +0200)
commit3dcdc50079bc2c9dbc6524518976353f743f7ec8
treeec620a55e21631efee6622f12338fae59b41d1aetree | snapshot
parente41f8d709c31b42129a34305a99d29c38aff75c4commit | diff
firewire: ohci: access bus_seconds atomically

In the unlikely event that card->driver->get_bus_time() is called during
a cycle64Seconds interrupt, we could read garbage unless atomic accesses
are used.

The switch to atomic ops requires to change the 64 seconds counter from
unsigned to signed, but this shouldn't matter to the end result.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
drivers/firewire/fw-ohci.c diff | blob | history
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