diff options
| author | Grissiom <[email protected]> | 2014-10-14 16:09:10 +0800 |
|---|---|---|
| committer | Grissiom <[email protected]> | 2014-10-14 16:09:10 +0800 |
| commit | 9a755833492a6a81045d987ba44fd7f105d489c3 (patch) | |
| tree | 00335a371251a7de6a81a5bccf58a61d0cdb7018 /components/dfs/src | |
| parent | 4c39f8765ac20bd43488484dd3e526de792e5d5e (diff) | |
dfs: check for null reference
Diffstat (limited to 'components/dfs/src')
| -rw-r--r-- | components/dfs/src/dfs_file.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/components/dfs/src/dfs_file.c b/components/dfs/src/dfs_file.c index f5619e2354..614a349494 100644 --- a/components/dfs/src/dfs_file.c +++ b/components/dfs/src/dfs_file.c @@ -335,6 +335,9 @@ int dfs_file_lseek(struct dfs_fd *fd, rt_off_t offset) if (fd == RT_NULL) return -DFS_STATUS_EINVAL; + fs = fd->fs; + if (fs == RT_NULL) + return -DFS_STATUS_EINVAL; if (fs->ops->lseek == RT_NULL) return -DFS_STATUS_ENOSYS; |