From 2bafef9619fdf18b9e1a7a1030af0b019a208607 Mon Sep 17 00:00:00 2001
From: Shuah Khan <skhan@linuxfoundation.org>
Date: Wed, 7 Jul 2021 21:18:27 -0600
Subject: [PATCH] selftests: firmware: Fix ignored return val of asprintf() warn
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Git-commit: fe968ca2cac91888310b143a483123c84906e3fc
Patch-mainline: v5.15-rc1
References: stable-5.14.6

[ Upstream commit fe968ca2cac91888310b143a483123c84906e3fc ]

Fix the following ingonred return val of asprintf() warn during
Build: 

cc -Wall -O2    fw_namespace.c  -o ../tools/testing/selftests/firmware/fw_namespace
Fw_namespace.c: In function ‘main’:
fw_namespace.c:132:2: warning: ignoring return value of ‘asprintf’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
  132 |  asprintf(&fw_path, "/lib/firmware/%s", fw_name);
      |  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Link: https://lore.kernel.org/r/20210708031827.51293-1-skhan@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 tools/testing/selftests/firmware/fw_namespace.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tools/testing/selftests/firmware/fw_namespace.c b/tools/testing/selftests/firmware/fw_namespace.c
index 0e393cb5f42d..4c6f0cd83c5b 100644
--- a/tools/testing/selftests/firmware/fw_namespace.c
+++ b/tools/testing/selftests/firmware/fw_namespace.c
@@ -129,7 +129,8 @@ int main(int argc, char **argv)
 		die("mounting tmpfs to /lib/firmware failed\n");
 
 	sys_path = argv[1];
-	asprintf(&fw_path, "/lib/firmware/%s", fw_name);
+	if (asprintf(&fw_path, "/lib/firmware/%s", fw_name) < 0)
+		die("error: failed to build full fw_path\n");
 
 	setup_fw(fw_path);
 
-- 
2.26.2