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| author | Olof Johansson <olof@lixom.net> | 2012-11-06 06:48:05 -0800 |
|---|---|---|
| committer | Olof Johansson <olof@lixom.net> | 2012-11-06 06:48:05 -0800 |
| commit | 3b19119b95a52200c8ae3df3aa89c21c9a1a8894 (patch) | |
| tree | 3ae74b8a35b3d1f639a68c1690af1c06e14a1571 /kernel/trace/ring_buffer.c | |
| parent | ccb1cfcb964fa8a8acd58b7783b2e82d7ad7975b (diff) | |
| parent | e095c0d122c09efabe7d4136ce77f72c636c4879 (diff) | |
Merge tag 'calxeda-ecx-2000' of git://sources.calxeda.com/kernel/linux into next/soc
Support for Calxeda ECX-2000 SOC from Rob Herring
* tag 'calxeda-ecx-2000' of git://sources.calxeda.com/kernel/linux:
ARM: highbank: Add initial ECX-2000 support
ARM: highbank: abstract out SCU usage
ARM: smp_twd: don't warn on no DT node
ARM: dts: Add Calxeda ECX-2000 support
ARM: highbank: enable coherent DMA for xgmac in dts
ARM: highbank: disable unused sdhci and gpio in dts
+ sync to Linux 3.7-rc3
Diffstat (limited to 'kernel/trace/ring_buffer.c')
| -rw-r--r-- | kernel/trace/ring_buffer.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c index b32ed0e385a5..b979426d16c6 100644 --- a/kernel/trace/ring_buffer.c +++ b/kernel/trace/ring_buffer.c @@ -1567,6 +1567,10 @@ int ring_buffer_resize(struct ring_buffer *buffer, unsigned long size, put_online_cpus(); } else { + /* Make sure this CPU has been intitialized */ + if (!cpumask_test_cpu(cpu_id, buffer->cpumask)) + goto out; + cpu_buffer = buffer->buffers[cpu_id]; if (nr_pages == cpu_buffer->nr_pages) |