[PATCH 4.4 20/34] btrfs: return value from btrfs_mark_extent_written() in case of error

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From: Ritesh Harjani <riteshh@xxxxxxxxxxxxx>

commit e7b2ec3d3d4ebeb4cff7ae45cf430182fa6a49fb upstream.

We always return 0 even in case of an error in btrfs_mark_extent_written().
Fix it to return proper error value in case of a failure. All callers
handle it.

CC: stable@xxxxxxxxxxxxxxx # 4.4+
Signed-off-by: Ritesh Harjani <riteshh@xxxxxxxxxxxxx>
Reviewed-by: David Sterba <dsterba@xxxxxxxx>
Signed-off-by: David Sterba <dsterba@xxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 fs/btrfs/file.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -1089,7 +1089,7 @@ int btrfs_mark_extent_written(struct btr
 	int del_nr = 0;
 	int del_slot = 0;
 	int recow;
-	int ret;
+	int ret = 0;
 	u64 ino = btrfs_ino(inode);
 
 	path = btrfs_alloc_path();
@@ -1284,7 +1284,7 @@ again:
 	}
 out:
 	btrfs_free_path(path);
-	return 0;
+	return ret;
 }
 
 /*





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