[Devel] [PATCH vz10 03/15] selftests/damon: fix -Wunused-but-set-variable in huge_count_read_write

[Konstantin Khorenko]

  huge_count_read_write.c: In function 'write_read_with_huge_count':
  huge_count_read_write.c:22:13: warning: variable 'ret' set but not used [-Wunused-but-set-variable]
     22 |         int ret;
        |             ^~~

Remove unused 'ret' variable. The read() return value is not needed
here -- the test only checks that huge count reads/writes don't cause
kernel warnings.

https://virtuozzo.atlassian.net/browse/VSTOR-127529
Signed-off-by: Konstantin Khorenko <khorenko at virtuozzo.com>

Feature: fix selftests
---
 tools/testing/selftests/damon/huge_count_read_write.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/tools/testing/selftests/damon/huge_count_read_write.c b/tools/testing/selftests/damon/huge_count_read_write.c
index a6fe0689f88d..fddc835ff8e7 100644
--- a/tools/testing/selftests/damon/huge_count_read_write.c
+++ b/tools/testing/selftests/damon/huge_count_read_write.c
@@ -19,7 +19,6 @@ void write_read_with_huge_count(char *file)
 {
 	int filedesc = open(file, O_RDWR);
 	char buf[25];
-	int ret;
 
 	printf("%s %s\n", __func__, file);
 	if (filedesc < 0) {
@@ -29,7 +28,7 @@ void write_read_with_huge_count(char *file)
 
 	write(filedesc, "", 0xfffffffful);
 	perror("after write: ");
-	ret = read(filedesc, buf, 0xfffffffful);
+	read(filedesc, buf, 0xfffffffful);
 	perror("after read: ");
 	close(filedesc);
 }
-- 
2.47.1