diff options
| -rw-r--r-- | fs/hfsplus/brec.c | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/fs/hfsplus/brec.c b/fs/hfsplus/brec.c index c88e5d72a402..fa903641992f 100644 --- a/fs/hfsplus/brec.c +++ b/fs/hfsplus/brec.c | |||
| @@ -216,7 +216,7 @@ skip: | |||
| 216 | static struct hfs_bnode *hfs_bnode_split(struct hfs_find_data *fd) | 216 | static struct hfs_bnode *hfs_bnode_split(struct hfs_find_data *fd) |
| 217 | { | 217 | { |
| 218 | struct hfs_btree *tree; | 218 | struct hfs_btree *tree; |
| 219 | struct hfs_bnode *node, *new_node; | 219 | struct hfs_bnode *node, *new_node, *next_node; |
| 220 | struct hfs_bnode_desc node_desc; | 220 | struct hfs_bnode_desc node_desc; |
| 221 | int num_recs, new_rec_off, new_off, old_rec_off; | 221 | int num_recs, new_rec_off, new_off, old_rec_off; |
| 222 | int data_start, data_end, size; | 222 | int data_start, data_end, size; |
| @@ -235,6 +235,17 @@ static struct hfs_bnode *hfs_bnode_split(struct hfs_find_data *fd) | |||
| 235 | new_node->type = node->type; | 235 | new_node->type = node->type; |
| 236 | new_node->height = node->height; | 236 | new_node->height = node->height; |
| 237 | 237 | ||
| 238 | if (node->next) | ||
| 239 | next_node = hfs_bnode_find(tree, node->next); | ||
| 240 | else | ||
| 241 | next_node = NULL; | ||
| 242 | |||
| 243 | if (IS_ERR(next_node)) { | ||
| 244 | hfs_bnode_put(node); | ||
| 245 | hfs_bnode_put(new_node); | ||
| 246 | return next_node; | ||
| 247 | } | ||
| 248 | |||
| 238 | size = tree->node_size / 2 - node->num_recs * 2 - 14; | 249 | size = tree->node_size / 2 - node->num_recs * 2 - 14; |
| 239 | old_rec_off = tree->node_size - 4; | 250 | old_rec_off = tree->node_size - 4; |
| 240 | num_recs = 1; | 251 | num_recs = 1; |
| @@ -248,6 +259,8 @@ static struct hfs_bnode *hfs_bnode_split(struct hfs_find_data *fd) | |||
| 248 | /* panic? */ | 259 | /* panic? */ |
| 249 | hfs_bnode_put(node); | 260 | hfs_bnode_put(node); |
| 250 | hfs_bnode_put(new_node); | 261 | hfs_bnode_put(new_node); |
| 262 | if (next_node) | ||
| 263 | hfs_bnode_put(next_node); | ||
| 251 | return ERR_PTR(-ENOSPC); | 264 | return ERR_PTR(-ENOSPC); |
| 252 | } | 265 | } |
| 253 | 266 | ||
| @@ -302,8 +315,7 @@ static struct hfs_bnode *hfs_bnode_split(struct hfs_find_data *fd) | |||
| 302 | hfs_bnode_write(node, &node_desc, 0, sizeof(node_desc)); | 315 | hfs_bnode_write(node, &node_desc, 0, sizeof(node_desc)); |
| 303 | 316 | ||
| 304 | /* update next bnode header */ | 317 | /* update next bnode header */ |
| 305 | if (new_node->next) { | 318 | if (next_node) { |
| 306 | struct hfs_bnode *next_node = hfs_bnode_find(tree, new_node->next); | ||
| 307 | next_node->prev = new_node->this; | 319 | next_node->prev = new_node->this; |
| 308 | hfs_bnode_read(next_node, &node_desc, 0, sizeof(node_desc)); | 320 | hfs_bnode_read(next_node, &node_desc, 0, sizeof(node_desc)); |
| 309 | node_desc.prev = cpu_to_be32(next_node->prev); | 321 | node_desc.prev = cpu_to_be32(next_node->prev); |
