Showing error 1765

User: Jiri Slaby
Error type: Invalid Pointer Dereference
Error type description: A pointer which is invalid is being dereferenced
File location: fs/reiserfs/super.c
Line in file: 243
Project: Linux Kernel
Project version: 2.6.28
Tools: Smatch (1.59)
Entered: 2013-09-10 20:24:52 UTC

Source: 

 213                        /* there are no "save" links anymore */
 214                        break;
 215
 216                save_link_key = ih->ih_key;
 217                if (is_indirect_le_ih(ih))
 218                        truncate = 1;
 219                else
 220                        truncate = 0;
 221
 222                /* reiserfs_iget needs k_dirid and k_objectid only */
 223                item = B_I_PITEM(bh, ih);
 224                obj_key.on_disk_key.k_dir_id = le32_to_cpu(*(__le32 *) item);
 225                obj_key.on_disk_key.k_objectid =
 226                    le32_to_cpu(ih->ih_key.k_objectid);
 227                obj_key.on_disk_key.k_offset = 0;
 228                obj_key.on_disk_key.k_type = 0;
 229
 230                pathrelse(&path);
 231
 232                inode = reiserfs_iget(s, &obj_key);
 233                if (!inode) {
 234                        /* the unlink almost completed, it just did not manage to remove
 235                           "save" link and release objectid */
 236                        reiserfs_warning(s,
 237                                         "vs-2180: finish_unfinished: iget failed for %K",
 238                                         &obj_key);
 239                        retval = remove_save_link_only(s, &save_link_key, 1);
 240                        continue;
 241                }
 242
 243                if (!truncate && inode->i_nlink) {
 244                        /* file is not unlinked */
 245                        reiserfs_warning(s,
 246                                         "vs-2185: finish_unfinished: file %K is not unlinked",
 247                                         &obj_key);
 248                        retval = remove_save_link_only(s, &save_link_key, 0);
 249                        continue;
 250                }
 251                DQUOT_INIT(inode);
 252
 253                if (truncate && S_ISDIR(inode->i_mode)) {
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