Stephane Eranian 9f7ff8931e perf/x86: Fix RAPL rdmsrl_safe() usage ... This patch fixes a bug introduced by: 2422365780 ("perf/x86/intel: Use rdmsrl_safe() when initializing RAPL PMU") The rdmsrl_safe() function returns 0 on success. The current code was failing to detect the RAPL PMU on real hardware (missing /sys/devices/power) because the return value of rdmsrl_safe() was misinterpreted. Signed-off-by: Stephane Eranian <eranian@google.com> Acked-by: Borislav Petkov <bp@suse.de> Acked-by: Venkatesh Srinivas <venkateshs@google.com> Cc: peterz@infradead.org Cc: zheng.z.yan@intel.com Link: http://lkml.kernel.org/r/20140423170418.GA12767@quad Signed-off-by: Ingo Molnar <mingo@kernel.org>		2014-04-24 08:12:41 +02:00
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x86	perf/x86: Fix RAPL rdmsrl_safe() usage	2014-04-24 08:12:41 +02:00
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