perf_event: Fix variable initialization in other codepaths

Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
LKML-Reference: <4B20BAA6.7010609@cn.fujitsu.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

diff --git a/arch/x86/kernel/cpu/perf_event.c b/arch/x86/kernel/cpu/perf_event.c
index d35f26076ae52160f88782a19f77a0b08684ded0..1342f236e32ab2f2be53be2ff6ee839ff8a22b94 100644 (file)
--- a/arch/x86/kernel/cpu/perf_event.c
+++ b/arch/x86/kernel/cpu/perf_event.c
@@ -1632,6 +1632,7 @@ static void intel_pmu_drain_bts_buffer(struct cpu_hw_events *cpuc)
 
        data.period     = event->hw.last_period;
        data.addr       = 0;
+       data.raw        = NULL;
        regs.ip         = 0;
 
        /*
@@ -1749,6 +1750,7 @@ static int p6_pmu_handle_irq(struct pt_regs *regs)
        u64 val;
 
        data.addr = 0;
+       data.raw = NULL;
 
        cpuc = &__get_cpu_var(cpu_hw_events);
 
@@ -1794,6 +1796,7 @@ static int intel_pmu_handle_irq(struct pt_regs *regs)
        u64 ack, status;
 
        data.addr = 0;
+       data.raw = NULL;
 
        cpuc = &__get_cpu_var(cpu_hw_events);
 
@@ -1857,6 +1860,7 @@ static int amd_pmu_handle_irq(struct pt_regs *regs)
        u64 val;
 
        data.addr = 0;
+       data.raw = NULL;
 
        cpuc = &__get_cpu_var(cpu_hw_events);
 

diff --git a/kernel/perf_event.c b/kernel/perf_event.c
index 3a5d6c4786bb711c49c74f3d5f00b3b55f59fd1d..d891ec4a810074b4ce1d6fbf76421f21ae3e40dd 100644 (file)
--- a/kernel/perf_event.c
+++ b/kernel/perf_event.c
@@ -4300,6 +4300,7 @@ void perf_bp_event(struct perf_event *bp, void *data)
        struct perf_sample_data sample;
        struct pt_regs *regs = data;
 
+       sample.raw = NULL;
        sample.addr = bp->attr.bp_addr;
 
        if (!perf_exclude_event(bp, regs))