Changeset 4797132 in mainline for uspace/srv/fs/fat/fat_ops.c

Timestamp:

2008-05-08T19:23:36Z (17 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

4573a79

Parents:

9a5ccfb3

Message:

Need a way to locate the FAT index structure by VFS index. Also fix code that
locates the FAT index structure by position in the file system namespace.

File:

• uspace/srv/fs/fat/fat_ops.c (modified) (1 diff)

uspace/srv/fs/fat/fat_ops.c

@@ -309 +309 @@
                         if (strcmp(name, component) == 0) {
                                 /* hit */
-                                fat_idx_t *idx = fat_idx_map(
+                                fat_idx_t *idx = fat_idx_get_by_pos(
                                     parentp->idx->dev_handle, parentp->firstc,
                                     i * dps + j);
+                                if (!idx) {
+                                        /*
+                                         * Can happen if memory is low or if we
+                                         * run out of 32-bit indices.
+                                         */
+                                        block_put(b);
+                                        return NULL;
+                                }
                                 void *node = fat_node_get(idx->dev_handle,
                                     idx->index);