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fix bug in dfs_unmount when test unmount condition found by Rob(rdent@iinet.net.au)

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git-svn-id: https://rt-thread.googlecode.com/svn/trunk@2356 bbd45198-f89e-11dd-88c7-29a3b14d5316
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goprife@gmail.com
2012-10-20 01:59:41 +00:00
parent e737514f86
commit d9b0bec989
1 changed files with 1 additions and 1 deletions
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components/dfs/src/dfs_fs.c
+1 -1
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@@ -361,7 +361,7 @@ int dfs_unmount(const char *specialfile)
dfs_lock();
fs = dfs_filesystem_lookup(fullpath);
if (fs != RT_NULL && fs->ops->unmount != RT_NULL && fs->ops->unmount(fs) < 0)
if (fs == RT_NULL || fs->ops->unmount == RT_NULL || fs->ops->unmount(fs) < 0)
{
goto err1;
}