[PATCH 6.1.y v2 09/18] perf strlist: Don't write to const memory

[Shreenidhi Shedi <yesshedi@gmail.com>]

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

commit 678ed6b707e4b2db250f255d2f959322896dae65 upstream

Do a strdup to the list string and parse from it, free at the end.

This is to deal with newer glibcs const-correctness.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Shreenidhi Shedi <yesshedi@gmail.com>
---
 tools/perf/util/strlist.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/tools/perf/util/strlist.c b/tools/perf/util/strlist.c
index 8a868cbeffae..98883672fcf4 100644
--- a/tools/perf/util/strlist.c
+++ b/tools/perf/util/strlist.c
@@ -139,21 +139,25 @@ static int strlist__parse_list_entry(struct strlist *slist, const char *s,
 	return err;
 }
 
-static int strlist__parse_list(struct strlist *slist, const char *s, const char *subst_dir)
+static int strlist__parse_list(struct strlist *slist, const char *list, const char *subst_dir)
 {
-	char *sep;
+	char *sep, *s = strdup(list), *sdup = s;
 	int err;
 
+	if (s == NULL)
+		return -ENOMEM;
+
 	while ((sep = strchr(s, ',')) != NULL) {
 		*sep = '\0';
 		err = strlist__parse_list_entry(slist, s, subst_dir);
-		*sep = ',';
 		if (err != 0)
 			return err;
 		s = sep + 1;
 	}
 
-	return *s ? strlist__parse_list_entry(slist, s, subst_dir) : 0;
+	err = *s ? strlist__parse_list_entry(slist, s, subst_dir) : 0;
+	free(sdup);
+	return err;
 }
 
 struct strlist *strlist__new(const char *list, const struct strlist_config *config)
-- 
2.54.0