[PATCH v2] selftests/alsa: missing a return value in unused dump_config_tree()

[John Hubbard <jhubbard@nvidia.com>]

dump_config_tree() is declared to return an int, but the compiler cannot
prove that it always returns any value at all. This leads to a clang
warning, when building via:

    make LLVM=1 -C tools/testing/selftests

Furthermore, Mark Brown noticed that dump_config_tree() isn't even used
anymore, so just delete the entire function.

Cc: Mark Brown <broonie@kernel.org>
Signed-off-by: John Hubbard <jhubbard@nvidia.com>
---
 tools/testing/selftests/alsa/conf.c | 13 -------------
 1 file changed, 13 deletions(-)

diff --git a/tools/testing/selftests/alsa/conf.c b/tools/testing/selftests/alsa/conf.c
index 89e3656a042d..357561c1759b 100644
--- a/tools/testing/selftests/alsa/conf.c
+++ b/tools/testing/selftests/alsa/conf.c
@@ -105,19 +105,6 @@ static struct card_cfg_data *conf_data_by_card(int card, bool msg)
 	return NULL;
 }
 
-static int dump_config_tree(snd_config_t *top)
-{
-	snd_output_t *out;
-	int err;
-
-	err = snd_output_stdio_attach(&out, stdout, 0);
-	if (err < 0)
-		ksft_exit_fail_msg("stdout attach\n");
-	if (snd_config_save(top, out))
-		ksft_exit_fail_msg("config save\n");
-	snd_output_close(out);
-}
-
 snd_config_t *conf_load_from_file(const char *filename)
 {
 	snd_config_t *dst;

base-commit: f462ae0edd3703edd6f22fe41d336369c38b884b
prerequisite-patch-id: b901ece2a5b78503e2fb5480f20e304d36a0ea27
-- 
2.45.0