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authorIngo Molnar <mingo@kernel.org>2016-07-27 13:35:35 +0300
committerIngo Molnar <mingo@kernel.org>2016-07-27 13:35:35 +0300
commitdf15929f8f5c69e987c31bf016eca4a38dba46f0 (patch)
treecfb5fe5e8ebff4cabd70557a304f355546943cc9 /tools/perf/arch/x86/util/tsc.c
parentefaad554b4ffae1840a2759e09e21325ddbc8b05 (diff)
parent37e13a1ebe32c4fbfbdb5413f42eb6e71d8b28a4 (diff)
downloadlinux-df15929f8f5c69e987c31bf016eca4a38dba46f0.tar.xz
Merge branch 'linus' into x86/microcode, to pick up merge window changes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'tools/perf/arch/x86/util/tsc.c')
-rw-r--r--tools/perf/arch/x86/util/tsc.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/perf/arch/x86/util/tsc.c b/tools/perf/arch/x86/util/tsc.c
index 357f1b13b5ae..2e5567c94e09 100644
--- a/tools/perf/arch/x86/util/tsc.c
+++ b/tools/perf/arch/x86/util/tsc.c
@@ -62,6 +62,8 @@ int perf_event__synth_time_conv(const struct perf_event_mmap_page *pc,
struct perf_tsc_conversion tc;
int err;
+ if (!pc)
+ return 0;
err = perf_read_tsc_conversion(pc, &tc);
if (err == -EOPNOTSUPP)
return 0;