[PATCH] btrfs: scrub: initialize variable explicitly

[Ou Shixiong]

Fix error of
error: â??retâ?? may be used uninitialized in this function [-Werror=maybe-uninitialized]

Signed-off-by: Ou Shixiong <oushixiong@xxxxxxxxxx>
---
 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 28caad17ccc7..0d5c87c52c33 100644
--- a/fs/btrfs/scrub.c
+++ b/fs/btrfs/scrub.c
@@ -1962,7 +1962,7 @@ static int scrub_simple_mirror(struct scrub_ctx *sctx,
 	/* An artificial limit, inherit from old scrub behavior */
 	struct btrfs_path path = { 0 };
 	u64 cur_logical = logical_start;
-	int ret;
+	int ret = 0;
 
 	/* The range must be inside the bg */
 	ASSERT(logical_start >= bg->start && logical_end <= bg->start + bg->length);
-- 
2.25.1

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