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From: Arnaldo Carvalho de Melo <acme@kernel.org>
To: Ingo Molnar <mingo@kernel.org>
Cc: linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org,
	Jiri Olsa <jolsa@kernel.org>,
	Alexander Shishkin <alexander.shishkin@linux.intel.com>,
	Andi Kleen <andi@firstfloor.org>, David Ahern <dsahern@gmail.com>,
	Mark Rutland <mark.rutland@arm.com>,
	Namhyung Kim <namhyung@kernel.org>,
	Peter Zijlstra <a.p.zijlstra@chello.nl>,
	Arnaldo Carvalho de Melo <acme@redhat.com>
Subject: [PATCH 07/18] perf values: Fix allocation check
Date: Tue, 29 Aug 2017 16:42:43 -0300	[thread overview]
Message-ID: <20170829194254.1338-8-acme@kernel.org> (raw)
In-Reply-To: <20170829194254.1338-1-acme@kernel.org>

From: Jiri Olsa <jolsa@kernel.org>

Bailing out in case the allocation failed, not the other way round.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/20170824162737.7813-8-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/values.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/util/values.c b/tools/perf/util/values.c
index 9ac36bf2c438..2c4af02f08cd 100644
--- a/tools/perf/util/values.c
+++ b/tools/perf/util/values.c
@@ -131,7 +131,7 @@ static int perf_read_values__enlarge_counters(struct perf_read_values *values)
 	for (i = 0; i < values->threads; i++) {
 		u64 *value = realloc(values->value[i], counters_max * sizeof(**values->value));
 
-		if (value) {
+		if (!value) {
 			pr_debug("failed to enlarge read_values ->values array");
 			goto out_free_name;
 		}
-- 
2.13.5

  parent reply	other threads:[~2017-08-29 19:42 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-08-29 19:42 [GIT PULL 00/18] perf/core improvements and fixes Arnaldo Carvalho de Melo
2017-08-29 19:42 ` Arnaldo Carvalho de Melo
2017-08-29 19:42 ` [PATCH 01/18] perf stat: Fix path to PMU formats in documentation Arnaldo Carvalho de Melo
2017-08-29 19:42 ` [PATCH 02/18] perf tools: Fix static build with newer toolchains Arnaldo Carvalho de Melo
2017-08-29 19:42 ` [PATCH 03/18] perf c2c: Fix remote HITM detection for Skylake Arnaldo Carvalho de Melo
2017-08-29 19:42 ` [PATCH 04/18] perf record: Set read_format for inherit_stat Arnaldo Carvalho de Melo
2017-08-29 19:42 ` [PATCH 05/18] perf report: Add dump_read function Arnaldo Carvalho de Melo
2017-08-29 19:42 ` [PATCH 06/18] perf values: Fix thread index bug Arnaldo Carvalho de Melo
2017-08-29 19:42 ` Arnaldo Carvalho de Melo [this message]
2017-08-29 19:42 ` [PATCH 08/18] perf values: Zero value buffers Arnaldo Carvalho de Melo
2017-08-29 19:42 ` [PATCH 09/18] perf report: Group stat values on global event id Arnaldo Carvalho de Melo
2017-08-29 19:42 ` [PATCH 10/18] tools build tests: Don't hardcode gcc name Arnaldo Carvalho de Melo
2017-08-29 19:42 ` [PATCH 11/18] perf tools: Allow external definition of flex and bison binary names Arnaldo Carvalho de Melo
2017-08-29 19:42 ` [PATCH 12/18] tools lib: Allow external definition of CC, AR and LD Arnaldo Carvalho de Melo
2017-08-29 19:42 ` [PATCH 13/18] perf tools: Robustify detection of clang binary Arnaldo Carvalho de Melo
2017-08-29 19:42 ` [PATCH 14/18] perf tools: Pass full path of FEATURES_DUMP Arnaldo Carvalho de Melo
2017-08-29 19:42 ` [PATCH 15/18] tools headers: Sync cpu features kernel ABI headers with tooling headers Arnaldo Carvalho de Melo
2017-08-29 19:42 ` [PATCH 16/18] perf trace beauty: Beautify pkey_{alloc,free,mprotect} arguments Arnaldo Carvalho de Melo
2017-08-29 19:42 ` [PATCH 17/18] perf probe: Fix kprobe blacklist checking condition Arnaldo Carvalho de Melo
2017-08-29 19:42 ` [PATCH 18/18] perf symbols: Fix plt entry calculation for ARM and AARCH64 Arnaldo Carvalho de Melo
2017-08-29 21:15 ` [GIT PULL 00/18] perf/core improvements and fixes Ingo Molnar
2017-08-29 21:15   ` Ingo Molnar

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