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| author | Ingo Molnar <mingo@elte.hu> | 2011-09-18 14:01:26 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2011-09-18 14:01:39 +0200 |
| commit | bfa322c48dc69bfdaee10faf3bd8dbc23b39a21c (patch) | |
| tree | 95360c5d253115003080264d878f3c0f907f2978 /arch/x86/kernel/cpu/perf_event.c | |
| parent | 88ebc08ea9f721d1345d5414288a308ea42ac458 (diff) | |
| parent | 003f6c9df54970d8b19578d195b3e2b398cdbde2 (diff) | |
Merge branch 'linus' into sched/core
Merge reason: We are queueing up a dependent patch.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/cpu/perf_event.c')
| -rw-r--r-- | arch/x86/kernel/cpu/perf_event.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/x86/kernel/cpu/perf_event.c b/arch/x86/kernel/cpu/perf_event.c index 4ee3abf20ed6..cfa62ec090ec 100644 --- a/arch/x86/kernel/cpu/perf_event.c +++ b/arch/x86/kernel/cpu/perf_event.c @@ -1900,6 +1900,9 @@ perf_callchain_user(struct perf_callchain_entry *entry, struct pt_regs *regs) perf_callchain_store(entry, regs->ip); + if (!current->mm) + return; + if (perf_callchain_user32(regs, entry)) return; |