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    Subject[PATCH 4.4 17/83] perf intel-pt: Fix missing stack clear
    Date
    4.4-stable review patch.  If anyone has any objections, please let me know.

    ------------------

    From: Adrian Hunter <adrian.hunter@intel.com>

    commit 12b7080609097753fd8198cc1daf589be3ec1cca upstream.

    The return compression stack must be cleared whenever there is a PSB. Fix
    one case where that was not happening.

    Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
    Cc: Andi Kleen <ak@linux.intel.com>
    Link: http://lkml.kernel.org/r/1495786658-18063-4-git-send-email-adrian.hunter@intel.com
    Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

    ---
    tools/perf/util/intel-pt-decoder/intel-pt-decoder.c | 1 +
    1 file changed, 1 insertion(+)

    --- a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c
    +++ b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c
    @@ -1898,6 +1898,7 @@ static int intel_pt_walk_to_ip(struct in
    break;

    case INTEL_PT_PSB:
    + intel_pt_clear_stack(&decoder->stack);
    err = intel_pt_walk_psb(decoder);
    if (err)
    return err;

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