[PATCH -next] ext4: remove set but not used variable 'es' in ext4_jbd2.c

[Jason Yan]

Fix the following gcc warning:

fs/ext4/ext4_jbd2.c:341:30: warning: variable 'es' set but not used [-Wunused-but-set-variable]
     struct ext4_super_block *es;
                              ^~

Fixes: 2ea2fc775321 ("ext4: save all error info in save_error_info() and drop ext4_set_errno()")
Reported-by: Hulk Robot <hulkci@xxxxxxxxxx>
Signed-off-by: Jason Yan <yanaijie@xxxxxxxxxx>
---
 fs/ext4/ext4_jbd2.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/fs/ext4/ext4_jbd2.c b/fs/ext4/ext4_jbd2.c
index 7f16e1af8d5c..0c76cdd44d90 100644
--- a/fs/ext4/ext4_jbd2.c
+++ b/fs/ext4/ext4_jbd2.c
@@ -338,9 +338,6 @@ int __ext4_handle_dirty_metadata(const char *where, unsigned int line,
 		if (inode && inode_needs_sync(inode)) {
 			sync_dirty_buffer(bh);
 			if (buffer_req(bh) && !buffer_uptodate(bh)) {
-				struct ext4_super_block *es;
-
-				es = EXT4_SB(inode->i_sb)->s_es;
 				ext4_error_inode_err(inode, where, line,
 						     bh->b_blocknr, EIO,
 					"IO error syncing itable block");
-- 
2.17.2