linux-kernel - [tip: perf/urgent] perf annotate: Propagate perf_env_

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Message-ID: <157045975491.9978.7407885401936915311.tip-bot2@tip-bot2>
Date:   Mon, 07 Oct 2019 14:49:14 -0000
From:   "tip-bot2 for Arnaldo Carvalho de Melo" <tip-bot2@...utronix.de>
To:     linux-tip-commits@...r.kernel.org
Cc:     "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>,
        Arnaldo Carvalho de Melo <acme@...hat.com>,
        Ingo Molnar <mingo@...nel.org>, Borislav Petkov <bp@...en8.de>,
        linux-kernel@...r.kernel.org
Subject: [tip: perf/urgent] perf annotate: Propagate perf_env__arch() error

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

Commit-ID:     a66fa0619a0ae3585ef09e9c33ecfb5c7c6cb72b
Gitweb:        https://git.kernel.org/tip/a66fa0619a0ae3585ef09e9c33ecfb5c7c6cb72b
Author:        Arnaldo Carvalho de Melo <acme@...hat.com>
AuthorDate:    Mon, 30 Sep 2019 15:06:01 -03:00
Committer:     Arnaldo Carvalho de Melo <acme@...hat.com>
CommitterDate: Mon, 30 Sep 2019 17:29:58 -03:00

perf annotate: Propagate perf_env__arch() error

The callers of symbol__annotate2() use symbol__strerror_disassemble() to
convert its failure returns into a human readable string, so
propagate error values from functions it calls, starting with
perf_env__arch() that when fails the right thing to do is to look at
'errno' to see why its possible call to uname() failed.

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-it5d83kyusfhb1q1b0l4pxzs@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 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 e830ead..9b7b917 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -2071,7 +2071,7 @@ int symbol__annotate(struct symbol *sym, struct map *map,
 	int err;
 
 	if (!arch_name)
-		return -1;
+		return errno;
 
 	args.arch = arch = arch__find(arch_name);
 	if (arch == NULL)