spelling: s/retreive/retrieve/

Signed-off-by: Adrian Bunk <bunk@stusta.de>
diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c
index d933ef1..a17b288 100644
--- a/fs/9p/vfs_inode.c
+++ b/fs/9p/vfs_inode.c
@@ -663,7 +663,7 @@
 }
 
 /**
- * v9fs_vfs_getattr - retreive file metadata
+ * v9fs_vfs_getattr - retrieve file metadata
  * @mnt - mount information
  * @dentry - file to get attributes on
  * @stat - metadata structure to populate