[PATCH V2 01/13] selftests: ublk: fix ublk_find_tgt()

[Ming Lei <ming.lei@redhat.com>]

Bounds check for iterator variable `i` is missed, so add it and fix
ublk_find_tgt().

Cc: Johannes Thumshirn <Johannes.Thumshirn@wdc.com>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
---
 tools/testing/selftests/ublk/kublk.c | 3 +--
 tools/testing/selftests/ublk/kublk.h | 2 ++
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/ublk/kublk.c b/tools/testing/selftests/ublk/kublk.c
index 91c282bc7674..74cf70b2f28e 100644
--- a/tools/testing/selftests/ublk/kublk.c
+++ b/tools/testing/selftests/ublk/kublk.c
@@ -14,13 +14,12 @@ static const struct ublk_tgt_ops *tgt_ops_list[] = {
 
 static const struct ublk_tgt_ops *ublk_find_tgt(const char *name)
 {
-	const struct ublk_tgt_ops *ops;
 	int i;
 
 	if (name == NULL)
 		return NULL;
 
-	for (i = 0; sizeof(tgt_ops_list) / sizeof(ops); i++)
+	for (i = 0; i < ARRAY_SIZE(tgt_ops_list); i++)
 		if (strcmp(tgt_ops_list[i]->name, name) == 0)
 			return tgt_ops_list[i];
 	return NULL;
diff --git a/tools/testing/selftests/ublk/kublk.h b/tools/testing/selftests/ublk/kublk.h
index 760ff8ffb810..73294f6e3e49 100644
--- a/tools/testing/selftests/ublk/kublk.h
+++ b/tools/testing/selftests/ublk/kublk.h
@@ -30,6 +30,8 @@
 #define min(a, b) ((a) < (b) ? (a) : (b))
 #endif
 
+#define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))
+
 /****************** part 1: libublk ********************/
 
 #define CTRL_DEV		"/dev/ublk-control"
-- 
2.47.0