[PATCH 3.18 134/185] powerpc/perf: Fix kernel address leak via sampling registers

3.18-stable review patch. If anyone has any objections, please let me know. -- From: Michael Ellerman [ Upstream commit e1ebd0e5b9d0a10ba65e63a3514b6da8c6a5a819 ] Current code in power_pmu_disable() does not clear the sampling registers like Sampling

[PATCH 3.18 134/185] powerpc/perf: Fix kernel address leak via sampling registers

3.18-stable review patch. If anyone has any objections, please let me know. -- From: Michael Ellerman [ Upstream commit e1ebd0e5b9d0a10ba65e63a3514b6da8c6a5a819 ] Current code in power_pmu_disable() does not clear the sampling registers like Sampling Instruction Address