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| author | Arnd Bergmann <arnd@arndb.de> | 2011-10-20 18:32:02 +0200 |
|---|---|---|
| committer | Arnd Bergmann <arnd@arndb.de> | 2011-10-20 18:32:02 +0200 |
| commit | 91056a63a7d8dbc817747a22d9a9490463323575 (patch) | |
| tree | a220d265d01075c05f4cd35d998e65849bb47bc8 /arch/x86/kernel/cpu/perf_event.c | |
| parent | 05d900c9d8ce536c6792efb323c82b1c97b54bf9 (diff) | |
| parent | f2d8df92f69b8c719ca1a46d2615b168b2cc9cdf (diff) | |
Merge branch 'imx-cleanups-for-arnd' of git://git.pengutronix.de/git/imx/linux-2.6 into imx/cleanup
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; |