Prevent oops when an app tries to create a pipe while pipefs
is not mounted.

Signed-off-by: Chuck Ebbert <[EMAIL PROTECTED]>

--- 2.6.19.1-pre1-32.orig/fs/pipe.c
+++ 2.6.19.1-pre1-32/fs/pipe.c
@@ -839,9 +839,11 @@ static struct dentry_operations pipefs_d
 
 static struct inode * get_pipe_inode(void)
 {
-       struct inode *inode = new_inode(pipe_mnt->mnt_sb);
+       struct inode *inode = NULL;
        struct pipe_inode_info *pipe;
 
+       if (pipe_mnt)
+               inode = new_inode(pipe_mnt->mnt_sb);
        if (!inode)
                goto fail_inode;
 
-- 
Chuck
-
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