perf intel-pt: Fix next 'err' value, walking trace
commit a32e6c5d upstream. Code after label 'next:' in intel_pt_walk_trace() assumes 'err' is zero, but it may not be, if arrived at via a 'goto'. Ensure it is zero. Fixes: 7c1b16ba ("perf intel-pt: Add support for decoding FUP/TIP only") Signed-off-by:Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: stable@vger.kernel.org # v5.15+ Link: https://lore.kernel.org/r/20211210162303.2288710-6-adrian.hunter@intel.com Signed-off-by:
Arnaldo Carvalho de Melo <acme@redhat.com> [Adrian: Backport to v5.10] Signed-off-by:
Adrian Hunter <adrian.hunter@intel.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
parent
02681dd1
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