[DFS_V1] 修复close失败后不释放fd导致内存被永久占用且无法释放 (#7907)

components/dfs/dfs_v1/filesystems/elmfat/dfs_elm.c

@@ -491,11 +491,9 @@ int dfs_elm_close(struct dfs_file *file)
         RT_ASSERT(fd != RT_NULL);
 
         result = f_close(fd);
-        if (result == FR_OK)
-        {
-            /* release memory */
-            rt_free(fd);
-        }
+
+        /* release memory */
+        rt_free(fd);
     }
 
     return elm_result_to_dfs(result);

components/dfs/dfs_v1/src/dfs_file.c

@@ -309,13 +309,6 @@ int dfs_file_close(struct dfs_file *fd)
             result = vnode->fops->close(fd);
         }
 
-        /* close fd error, return */
-        if (result < 0)
-        {
-            dfs_fm_unlock();
-            return result;
-        }
-
         if (vnode->ref_count == 1)
         {
             /* remove from hash */

components/dfs/dfs_v1/src/dfs_posix.c

@@ -146,6 +146,7 @@ int close(int fd)
     }
 
     result = dfs_file_close(d);
+    fd_release(fd);
 
     if (result < 0)
     {
@@ -154,8 +155,6 @@ int close(int fd)
         return -1;
     }
 
-    fd_release(fd);
-
     return 0;
 }
 RTM_EXPORT(close);