Merge pull request #2050 from jesven/lwp-mcore

修正dfs在fd_get时，未检查有效性的问题
2018-12-10 09:21:10 +08:00 · 2018-12-10 09:21:10 +08:00 · 09a9e82fef
parent 506ccc573c 56c0df1e58
commit 09a9e82fef
1 changed files with 1 additions and 1 deletions
--- a/components/dfs/src/dfs.c
+++ b/components/dfs/src/dfs.c
@ -221,7 +221,7 @@ struct dfs_fd *fd_get(int fd)
    d = fdt->fds[fd];
    /* check dfs_fd valid or not */
-    if (d->magic != DFS_FD_MAGIC)
+    if ((d == NULL) || (d->magic != DFS_FD_MAGIC))
    {
        dfs_unlock();
        return NULL;