[PATCH] btrfs: Initialize ret to 0 in scrub_simple_mirror()

[Souptick Joarder]

From: "Souptick Joarder (HPE)" <jrdr.linux@xxxxxxxxx>

Kernel test robot reported below warning ->
fs/btrfs/scrub.c:3439:2: warning: Undefined or garbage value
returned to caller [clang-analyzer-core.uninitialized.UndefReturn]

Initialize ret to 0.

Reported-by: kernel test robot <lkp@xxxxxxxxx>
Signed-off-by: Souptick Joarder (HPE) <jrdr.linux@xxxxxxxxx>
---
 fs/btrfs/scrub.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/btrfs/scrub.c b/fs/btrfs/scrub.c
index 4baa8e43d585..5ca7e5ffbc96 100644
--- a/fs/btrfs/scrub.c
+++ b/fs/btrfs/scrub.c
@@ -3325,7 +3325,7 @@ static int scrub_simple_mirror(struct scrub_ctx *sctx,
 	const u32 max_length = SZ_64K;
 	struct btrfs_path path = {};
 	u64 cur_logical = logical_start;
-	int ret;
+	int ret = 0;
 
 	/* The range must be inside the bg */
 	ASSERT(logical_start >= bg->start &&
-- 
2.25.1