[tip: perf/urgent] perf annotate: Return appropriate error code for allocation failures

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The following commit has been merged into the perf/urgent branch of tip:

Commit-ID:     16ed3c1e91159e28b02f11f71ff4ce4cbc6f99e4
Gitweb:        https://git.kernel.org/tip/16ed3c1e91159e28b02f11f71ff4ce4cbc6f99e4
Author:        Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
AuthorDate:    Mon, 30 Sep 2019 15:53:33 -03:00
Committer:     Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitterDate: Mon, 30 Sep 2019 17:30:04 -03:00

perf annotate: Return appropriate error code for allocation failures

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@xxxxxxxxxxxxxxx>
Cc: Adrian Hunter <adrian.hunter@xxxxxxxxx>
Cc: Alexander Shishkin <alexander.shishkin@xxxxxxxxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>,
Cc: Will Deacon <will@xxxxxxxxxx>
Link: https://lkml.kernel.org/n/tip-8of1cmj3rz0mppfcshc9bbqq@xxxxxxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
 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 dc15352..b49ecdd 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -1668,7 +1668,7 @@ 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
@@ -2977,7 +2977,7 @@ int symbol__annotate2(struct symbol *sym, struct map *map, struct evsel *evsel,
 
 	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->core.nr_members;



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