From: Zheng Zengkai <zhengzeng...@huawei.com>
[ Upstream commit 2eb5dd418034ecea2f7031e3d33f2991a878b148 ]
When using 'perf record's option '-I' or '--user-regs=' along with
argument '?' to list available register names, memory of variable 'os'
allocated by strdup() needs to be released before __parse_regs()
returns, otherwise memory leak will occur.
Fixes: bcc84ec65ad1 ("perf record: Add ability to name registers to record")
Signed-off-by: Zheng Zengkai <zhengzeng...@huawei.com>
Acked-by: Jiri Olsa <jo...@redhat.com>
Cc: Alexander Shishkin <alexander.shish...@linux.intel.com>
Cc: Li Bin <huawei.li...@huawei.com>
Cc: Mark Rutland <mark.rutl...@arm.com>
Cc: Namhyung Kim <namhy...@kernel.org>
Link: https://lore.kernel.org/r/20200703093344.189450-1-zhengzeng...@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <a...@redhat.com>
Signed-off-by: Sasha Levin <sas...@kernel.org>
---
tools/perf/util/parse-regs-options.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/perf/util/parse-regs-options.c
b/tools/perf/util/parse-regs-options.c
index 646ecf736aadb..be2ab1091c2bb 100644
--- a/tools/perf/util/parse-regs-options.c
+++ b/tools/perf/util/parse-regs-options.c
@@ -40,7 +40,7 @@ parse_regs(const struct option *opt, const char *str, int
unset)
}
fputc('\n', stderr);
/* just printing available regs */
- return -1;
+ goto error;
}
for (r = sample_reg_masks; r->name; r++) {
if (!strcasecmp(s, r->name))
--
2.27.0
