diff options
| author | Olof Johansson <olof@lixom.net> | 2012-11-06 07:51:06 -0800 |
|---|---|---|
| committer | Olof Johansson <olof@lixom.net> | 2012-11-06 07:51:06 -0800 |
| commit | 66267ee58732bb4c21c7bbba004ee481b8ad2b30 (patch) | |
| tree | bf7f72e623d7c1ca6472e0a1286e802cd3bff139 /kernel/trace/ring_buffer.c | |
| parent | 6ed68a6d83e4497dc33581ccc82b4fa3e7e8226d (diff) | |
| parent | f58007762f537ba13674a3138b3f4c20fff1cba9 (diff) | |
Merge branch 'arm-next' of git://git.xilinx.com/linux-xlnx into next/cleanup
From Michal Simek:
* 'arm-next' of git://git.xilinx.com/linux-xlnx:
zynq: move static peripheral mappings
zynq: remove use of CLKDEV_LOOKUP
zynq: use pl310 device tree bindings
zynq: use GIC device tree bindings
+ 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) |