[PATCH] selftests/alsa: fix a build warning: return a value in all cases

From: John Hubbard
Date: Fri May 03 2024 - 22:13:46 EST


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

Fix this by unconditionally returning the "err" variable if the code
reaches the end of the function.

Signed-off-by: John Hubbard <jhubbard@xxxxxxxxxx>
---
tools/testing/selftests/alsa/conf.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/tools/testing/selftests/alsa/conf.c b/tools/testing/selftests/alsa/conf.c
index 89e3656a042d..0109fde53e6f 100644
--- a/tools/testing/selftests/alsa/conf.c
+++ b/tools/testing/selftests/alsa/conf.c
@@ -116,6 +116,8 @@ static int dump_config_tree(snd_config_t *top)
if (snd_config_save(top, out))
ksft_exit_fail_msg("config save\n");
snd_output_close(out);
+
+ return err;
}

snd_config_t *conf_load_from_file(const char *filename)

base-commit: ddb4c3f25b7b95df3d6932db0b379d768a6ebdf7
prerequisite-patch-id: b901ece2a5b78503e2fb5480f20e304d36a0ea27
--
2.45.0