ext4: Fix coding style in fs/ext4/move_extent.c

Making sure ee_block is initialized to zero to prevent gcc from
kvetching.  It's harmless (although it's not obvious that it's
harmless) from code inspection:

fs/ext4/move_extent.c:478: warning: 'start_ext.ee_block' may be used
uninitialized in this function

Thanks to Stefan Richter for first bringing this to the attention of
linux-ext4@vger.kernel.org.

Signed-off-by: LiuQi <lingjiujianke@gmail.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: Stefan Richter <stefanr@s5r6.in-berlin.de>

diff --git a/fs/ext4/move_extent.c b/fs/ext4/move_extent.c
index d1fc662cc311070c19742a5cb7522f167c8a4774..82621a36093268363b28672fdc7e10075fa37c97 100644 (file)
--- a/fs/ext4/move_extent.c
+++ b/fs/ext4/move_extent.c
@@ -482,6 +482,7 @@ mext_leaf_block(handle_t *handle, struct inode *orig_inode,
        int depth = ext_depth(orig_inode);
        int ret;
 
+       start_ext.ee_block = end_ext.ee_block = 0;
        o_start = o_end = oext = orig_path[depth].p_ext;
        oext_alen = ext4_ext_get_actual_len(oext);
        start_ext.ee_len = end_ext.ee_len = 0;