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author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2012-04-18 22:16:48 +0000 |
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committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2012-04-23 11:04:28 +1000 |
commit | 3027691e58bfb21f6ea2e9f1d225d11b4e2b20e2 (patch) | |
tree | 4ff705ce7b3b9b51563777b584d90cf4d0b1a348 /.mailmap | |
parent | 2ef822c55371b20548d4f58193c580407a5d738d (diff) | |
download | linux-3027691e58bfb21f6ea2e9f1d225d11b4e2b20e2.tar.gz |
powerpc/pmac: Don't add_timer() twice
If the interrupt and the timeout happen roughly at the same time, we can get into a situation where the timer function is run while the interrupt has already been processed. In this case, the timer function might end up doing an add_timer on an already pending timer, causing a BUG_ON() to trigger. Instead, just skip the whole timeout operation if we see that the timer is pending. The spinlock ensures that the only way that happens is if we already started a new operation and thus the timeout can be ignored. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to '.mailmap')
0 files changed, 0 insertions, 0 deletions