[PATCH 3.10 25/62] btrfs: fix lost return value due to variable shadowing

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3.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: David Sterba <dsterba@xxxxxxx>

commit 1932b7be973b554ffe20a5bba6ffaed6fa995cdc upstream.

A block-local variable stores error code but btrfs_get_blocks_direct may
not return it in the end as there's a ret defined in the function scope.

Fixes: d187663ef24c ("Btrfs: lock extents as we map them in DIO")
Signed-off-by: David Sterba <dsterba@xxxxxxx>
Signed-off-by: Chris Mason <clm@xxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
 fs/btrfs/inode.c |    1 -
 1 file changed, 1 deletion(-)

--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -6825,7 +6825,6 @@ static int btrfs_get_blocks_direct(struc
 	    ((BTRFS_I(inode)->flags & BTRFS_INODE_NODATACOW) &&
 	     em->block_start != EXTENT_MAP_HOLE)) {
 		int type;
-		int ret;
 		u64 block_start, orig_start, orig_block_len, ram_bytes;
 
 		if (test_bit(EXTENT_FLAG_PREALLOC, &em->flags))


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