diff options
| author | Bartosz Golaszewski <bartosz.golaszewski@linaro.org> | 2024-10-14 09:03:34 +0200 |
|---|---|---|
| committer | Bartosz Golaszewski <bartosz.golaszewski@linaro.org> | 2024-10-14 09:03:34 +0200 |
| commit | bebb45743d52fea1ac0a4a9f465f11d11e885f40 (patch) | |
| tree | a1dda3e26ac754e78cbb9734dae3f13f3a8adf39 /kernel/trace/ring_buffer.c | |
| parent | ea7f2dfd13e096dce3198e5ffdb00d21bf7c8fe5 (diff) | |
| parent | 8e929cb546ee42c9a61d24fae60605e9e3192354 (diff) | |
Merge tag 'v6.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into gpio/for-next
Linux 6.12-rc3
Diffstat (limited to 'kernel/trace/ring_buffer.c')
| -rw-r--r-- | kernel/trace/ring_buffer.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c index 77dc0b25140e..fb04445f92c3 100644 --- a/kernel/trace/ring_buffer.c +++ b/kernel/trace/ring_buffer.c @@ -2337,9 +2337,12 @@ static struct trace_buffer *alloc_buffer(unsigned long size, unsigned flags, if (!buffer->buffers[cpu]) goto fail_free_buffers; - ret = cpuhp_state_add_instance(CPUHP_TRACE_RB_PREPARE, &buffer->node); - if (ret < 0) - goto fail_free_buffers; + /* If already mapped, do not hook to CPU hotplug */ + if (!start) { + ret = cpuhp_state_add_instance(CPUHP_TRACE_RB_PREPARE, &buffer->node); + if (ret < 0) + goto fail_free_buffers; + } mutex_init(&buffer->mutex); |