[BlueZ 3/3] mesh: Fix const qualifier dropping when using strchr()

[Bastien Nocera <hadess@hadess.net>]

strchr() with a const string returns a const string, we don't change
that string or "next", so make both const and get rid of the warning.

mesh/util.c: In function ‘create_dir’:
mesh/util.c:108:14: error: assignment discards ‘const’ qualifier from pointer target type [-Werror=discarded-qualifiers]
  108 |         prev = strchr(dir_name, '/');
      |              ^
---
 mesh/util.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/mesh/util.c b/mesh/util.c
index 348401ae5582..a21882a2d9f0 100644
--- a/mesh/util.c
+++ b/mesh/util.c
@@ -95,7 +95,8 @@ size_t hex2str(const uint8_t *in, size_t in_len, char *out, size_t out_len)
 int create_dir(const char *dir_name)
 {
 	struct stat st;
-	char dir[PATH_MAX + 1], *prev, *next;
+	const char *prev, *next;
+	char dir[PATH_MAX + 1];
 	int err;
 
 	err = stat(dir_name, &st);
-- 
2.54.0