Commit-ID: 3fded963cdae12ff891a55efc866437506c3f912 Gitweb: http://git.kernel.org/tip/3fded963cdae12ff891a55efc866437506c3f912 Author: Jiri Olsa <jo...@redhat.com> AuthorDate: Wed, 10 Oct 2012 14:53:16 +0200 Committer: Ingo Molnar <mi...@kernel.org> CommitDate: Wed, 24 Oct 2012 10:41:26 +0200
perf tools: Fix PMU object alias initialization The pmu_lookup should return pmus that do not expose the 'events' group attribute in sysfs. Also it should fail when any other error during 'events' lookup is hit (pmu_aliases fails). Signed-off-by: Jiri Olsa <jo...@redhat.com> Cc: Arnaldo Carvalho de Melo <a...@ghostprotocols.net> Cc: Paul Mackerras <pau...@samba.org> Cc: Corey Ashford <cjash...@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweis...@gmail.com> Cc: Stephane Eranian <eran...@google.com> Signed-off-by: Peter Zijlstra <a.p.zijls...@chello.nl> Link: http://lkml.kernel.org/r/1349873598-12583-7-git-send-email-jo...@redhat.com Signed-off-by: Ingo Molnar <mi...@kernel.org> --- tools/perf/util/pmu.c | 7 ++++--- 1 files changed, 4 insertions(+), 3 deletions(-) diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c index 8a2229d..18e8480 100644 --- a/tools/perf/util/pmu.c +++ b/tools/perf/util/pmu.c @@ -164,7 +164,7 @@ static int pmu_aliases(char *name, struct list_head *head) "%s/bus/event_source/devices/%s/events", sysfs, name); if (stat(path, &st) < 0) - return -1; + return 0; /* no error if 'events' does not exist */ if (pmu_aliases_parse(path, head)) return -1; @@ -296,6 +296,9 @@ static struct perf_pmu *pmu_lookup(char *name) if (pmu_format(name, &format)) return NULL; + if (pmu_aliases(name, &aliases)) + return NULL; + if (pmu_type(name, &type)) return NULL; @@ -305,8 +308,6 @@ static struct perf_pmu *pmu_lookup(char *name) pmu->cpus = pmu_cpumask(name); - pmu_aliases(name, &aliases); - INIT_LIST_HEAD(&pmu->format); INIT_LIST_HEAD(&pmu->aliases); list_splice(&format, &pmu->format); -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
