[PATCH 4.4 17/83] perf intel-pt: Fix missing stack clear

From	Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Newsgroups	linux.kernel
Subject	[PATCH 4.4 17/83] perf intel-pt: Fix missing stack clear
Date	2017-07-25 23:10 +0200
Message-ID	<u7ffC-82I-85@gated-at.bofh.it> (permalink)
References	<u7dGO-6Sz-33@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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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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[PATCH 4.4 17/83] perf intel-pt: Fix missing stack clear Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2017-07-25 23:10 +0200

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