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-rw-r--r--arch/x86/events/core.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/arch/x86/events/core.c b/arch/x86/events/core.c
index 8e509325c2c3..8f71dd72ef95 100644
--- a/arch/x86/events/core.c
+++ b/arch/x86/events/core.c
@@ -396,10 +396,12 @@ int x86_reserve_hardware(void)
if (!atomic_inc_not_zero(&pmc_refcount)) {
mutex_lock(&pmc_reserve_mutex);
if (atomic_read(&pmc_refcount) == 0) {
- if (!reserve_pmc_hardware())
+ if (!reserve_pmc_hardware()) {
err = -EBUSY;
- else
+ } else {
reserve_ds_buffers();
+ reserve_lbr_buffers();
+ }
}
if (!err)
atomic_inc(&pmc_refcount);