From 4f9dc273ec03c91d32a8762518c5491050b7cdc6 Mon Sep 17 00:00:00 2001
From: prife <goprife@gmail.com>
Date: Sat, 21 Dec 2013 11:35:09 +0800
Subject: [PATCH] dfs: fix dfs_unmount bug

fix #211
---
 components/dfs/src/dfs_fs.c | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/components/dfs/src/dfs_fs.c b/components/dfs/src/dfs_fs.c
index 770fd71cf..4c5982cf3 100644
--- a/components/dfs/src/dfs_fs.c
+++ b/components/dfs/src/dfs_fs.c
@@ -320,6 +320,7 @@ err1:
 int dfs_unmount(const char *specialfile)
 {
     char *fullpath;
+    struct dfs_filesystem *iter;
     struct dfs_filesystem *fs = RT_NULL;
 
     fullpath = dfs_normalize_path(RT_NULL, specialfile);
@@ -333,7 +334,17 @@ int dfs_unmount(const char *specialfile)
     /* lock filesystem */
     dfs_lock();
 
-    fs = dfs_filesystem_lookup(fullpath);
+    for (iter = &filesystem_table[0];
+            iter < &filesystem_table[DFS_FILESYSTEMS_MAX]; iter++)
+    {
+        /* check if the PATH is mounted */
+        if ((iter->path != NULL) && (strcmp(iter->path, fullpath) == 0))
+        {
+            fs = iter;
+            break;
+        }
+    }
+
     if (fs == RT_NULL ||
         fs->ops->unmount == RT_NULL ||
         fs->ops->unmount(fs) < 0)
-- 
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