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| author | James Morris <jmorris@namei.org> | 2009-05-08 09:56:47 +0200 |
|---|---|---|
| committer | James Morris <jmorris@namei.org> | 2009-05-08 09:56:47 +0200 |
| commit | d254117099d711f215e62427f55dfb8ebd5ad011 (patch) | |
| tree | 0848ff8dd74314fec14a86497f8d288c86ba7c65 /kernel/tracepoint.c | |
| parent | integrity: remove __setup auditing msgs (diff) | |
| parent | NOMMU: Don't check vm_region::vm_start is page aligned in add_nommu_region() (diff) | |
| download | linux-d254117099d711f215e62427f55dfb8ebd5ad011.tar.xz linux-d254117099d711f215e62427f55dfb8ebd5ad011.zip | |
Merge branch 'master' into next
Diffstat (limited to 'kernel/tracepoint.c')
| -rw-r--r-- | kernel/tracepoint.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/kernel/tracepoint.c b/kernel/tracepoint.c index 79602740bbb5..1ef5d3a601c7 100644 --- a/kernel/tracepoint.c +++ b/kernel/tracepoint.c @@ -272,12 +272,15 @@ static void disable_tracepoint(struct tracepoint *elem) * * Updates the probe callback corresponding to a range of tracepoints. */ -void tracepoint_update_probe_range(struct tracepoint *begin, - struct tracepoint *end) +void +tracepoint_update_probe_range(struct tracepoint *begin, struct tracepoint *end) { struct tracepoint *iter; struct tracepoint_entry *mark_entry; + if (!begin) + return; + mutex_lock(&tracepoints_mutex); for (iter = begin; iter < end; iter++) { mark_entry = get_tracepoint(iter->name); |