[tip: perf/urgent] perf annotate: Fix the signedness of failure returns

[tip-bot2 for Arnaldo Carvalho de Melo]

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

Commit-ID:     28f4417c3333940b242af03d90214f713bbef232
Gitweb:        https://git.kernel.org/tip/28f4417c3333940b242af03d90214f713bbef232
Author:        Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
AuthorDate:    Mon, 30 Sep 2019 15:11:47 -03:00
Committer:     Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitterDate: Mon, 30 Sep 2019 17:30:00 -03:00

perf annotate: Fix the signedness of failure returns

Callers of symbol__annotate() expect a errno value or some other
extended error value range in symbol__strerror_disassemble() to
convert to a proper error string, fix it when propagating a failure to
find the arch specific annotation routines via arch__find(arch_name).

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-o0k6dw7cas0vvmjjvgsyvu1i@xxxxxxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
 tools/perf/util/annotate.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index 9b7b917..95109ac 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -2075,7 +2075,7 @@ int symbol__annotate(struct symbol *sym, struct map *map,
 
 	args.arch = arch = arch__find(arch_name);
 	if (arch == NULL)
-		return -ENOTSUP;
+		return ENOTSUP;
 
 	if (parch)
 		*parch = arch;