linux-kernel - [PATCH AUTOSEL 4.19 061/100] perf annotate: Return appropriate error code for allocation failures

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Message-Id: <20191018220525.9042-61-sashal@kernel.org>
Date:   Fri, 18 Oct 2019 18:04:46 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Arnaldo Carvalho de Melo <acme@...hat.com>,
        Russell King - ARM Linux admin <linux@...linux.org.uk>,
        Adrian Hunter <adrian.hunter@...el.com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...nel.org>,
        Namhyung Kim <namhyung@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Will Deacon <will@...nel.org>, Sasha Levin <sashal@...nel.org>
Subject: [PATCH AUTOSEL 4.19 061/100] perf annotate: Return appropriate error code for allocation failures

From: Arnaldo Carvalho de Melo <acme@...hat.com>

[ Upstream commit 16ed3c1e91159e28b02f11f71ff4ce4cbc6f99e4 ]

We should return errno or the annotation extra range understood by
symbol__strerror_disassemble() instead of -1, fix it, returning ENOMEM
instead.

Reported-by: Russell King - ARM Linux admin <linux@...linux.org.uk>
Cc: Adrian Hunter <adrian.hunter@...el.com>
Cc: Alexander Shishkin <alexander.shishkin@...ux.intel.com>
Cc: Jiri Olsa <jolsa@...nel.org>
Cc: Namhyung Kim <namhyung@...nel.org>
Cc: Peter Zijlstra <peterz@...radead.org>,
Cc: Will Deacon <will@...nel.org>
Link: https://lkml.kernel.org/n/tip-8of1cmj3rz0mppfcshc9bbqq@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 tools/perf/util/annotate.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index 83a3ad4256c5b..6958d7eed5bed 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -1614,7 +1614,7 @@ static int dso__disassemble_filename(struct dso *dso, char *filename, size_t fil
 
 	build_id_path = strdup(filename);
 	if (!build_id_path)
-		return -1;
+		return ENOMEM;
 
 	/*
 	 * old style build-id cache has name of XX/XXXXXXX.. while
@@ -2732,7 +2732,7 @@ int symbol__annotate2(struct symbol *sym, struct map *map, struct perf_evsel *ev
 
 	notes->offsets = zalloc(size * sizeof(struct annotation_line *));
 	if (notes->offsets == NULL)
-		return -1;
+		return ENOMEM;
 
 	if (perf_evsel__is_group_event(evsel))
 		nr_pcnt = evsel->nr_members;
-- 
2.20.1