diff options
Diffstat (limited to 'src/user/driver/tmpfs.c')
| -rw-r--r-- | src/user/driver/tmpfs.c | 21 |
1 files changed, 10 insertions, 11 deletions
diff --git a/src/user/driver/tmpfs.c b/src/user/driver/tmpfs.c index 80c0196..6e5b45e 100644 --- a/src/user/driver/tmpfs.c +++ b/src/user/driver/tmpfs.c @@ -23,6 +23,7 @@ static struct node *lookup(const char *path, size_t len) { } static struct node *tmpfs_open(const char *path, struct fs_wait_response *res) { + struct node *node; if (res->len == 0) return NULL; path++; res->len--; @@ -32,21 +33,19 @@ static struct node *tmpfs_open(const char *path, struct fs_wait_response *res) { // no directory support (yet) if (memchr(path, '/', res->len)) return NULL; - if (res->flags & OPEN_CREATE) { - if (lookup(path, res->len)) return NULL; /* already exists */ - struct node *new = malloc(sizeof *new); - memset(new, 0, sizeof *new); + node = lookup(path, res->len); + if (!node && (res->flags & OPEN_CREATE)) { + node = malloc(sizeof *node); + memset(node, 0, sizeof *node); char *namebuf = malloc(res->len); memcpy(namebuf, path, res->len); - new->name = namebuf; - new->namelen = res->len; - new->next = root; - root = new; - return new; + node->name = namebuf; + node->namelen = res->len; + node->next = root; + root = node; } - - return lookup(path, res->len); + return node; } void tmpfs_drv(void) { |