perf stat: Fix use-after-freed pointer detected by the smatch tool
Based on the following report from Smatch, fix the use-after-freed pointer. tools/perf/builtin-stat.c:1353 add_default_attributes() warn: passing freed memory 'str'. The pointer 'str' has been freed but later it is still passed into the function parse_events_print_error(). This patch fixes this use-after-freed issue. Signed-off-by:Leo Yan <leo.yan@linaro.org> Acked-by:
Jiri Olsa <jolsa@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexey Budankov <alexey.budankov@linux.intel.com> Cc: Alexios Zavras <alexios.zavras@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Changbin Du <changbin.du@intel.com> Cc: Davidlohr Bueso <dave@stgolabs.net> Cc: David S. Miller <davem@davemloft.net> Cc: Eric Saint-Etienne <eric.saint.etienne@oracle.com> Cc: Jin Yao <yao.jin@linux.intel.com> Cc: Konstantin Khlebnikov <khlebnikov@yandex-team.ru> Cc: linux-arm-kernel@lists.infradead.org Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk> Cc: Song Liu <songliubraving@fb.com> Cc: Suzuki Poulouse <suzuki.poulose@arm.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Thomas Richter <tmricht@linux.ibm.com> Link: http://lkml.kernel.org/r/20190702103420.27540-3-leo.yan@linaro.org Signed-off-by:
Arnaldo Carvalho de Melo <acme@redhat.com>
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