ext4: remove set but not used variable 'es' in ext4_jbd2.c

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@huawei.com>
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Link: https://lore.kernel.org/r/20200402034759.29957-1-yanaijie@huawei.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>

diff --git a/fs/ext4/ext4_jbd2.c b/fs/ext4/ext4_jbd2.c
index 7f16e1af8d5cc6fb371f98b64e9d0b127aec4ca7..0c76cdd44d90d02316114172da2ea8bd5120e6a9 100644 (file)
--- 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");