debugfs: fix uninitialized variable es in do_logdump()

Fixes: d96064e9821a ("debugfs: simplify the do_logdump() function")

Signed-off-by: Theodore Ts'o <tytso@mit.edu>

diff --git a/debugfs/logdump.c b/debugfs/logdump.c
index b747a92..10d413b 100644 (file)
--- a/debugfs/logdump.c
+++ b/debugfs/logdump.c
@@ -159,6 +159,7 @@ void do_logdump(int argc, char **argv, int sci_idx EXT2FS_ATTR((unused)),
                if (!inode_to_dump)
                        return;
 
+               es = current_fs->super;
                inode_group = ((inode_to_dump - 1)
                               / es->s_inodes_per_group);
                group_offset = ((inode_to_dump - 1)
@@ -189,7 +190,10 @@ void do_logdump(int argc, char **argv, int sci_idx EXT2FS_ATTR((unused)),
                }
        }
 
-       if (block_to_dump != ANY_BLOCK && current_fs != NULL) {
+       if (block_to_dump != ANY_BLOCK) {
+               if (check_fs_open(argv[0]))
+                       return;
+               es = current_fs->super;
                group_to_dump = ((block_to_dump -
                                  es->s_first_data_block)
                                 / es->s_blocks_per_group);