[PATCH 3.16 076/114] propogate_mnt: Handle the first propogated copy being a slave

3.16.36-rc1 review patch. If anyone has any objections, please let me know. -- From: "Eric W. Biederman" commit 5ec0811d30378ae104f250bfc9b3640242d81e3f upstream. When the first propgated copy was a slave the following oops would result: > BUG: unable

[PATCH 3.16 076/114] propogate_mnt: Handle the first propogated copy being a slave

3.16.36-rc1 review patch. If anyone has any objections, please let me know. -- From: "Eric W. Biederman" commit 5ec0811d30378ae104f250bfc9b3640242d81e3f upstream. When the first propgated copy was a slave the following oops would result: > BUG: unable to handle kernel NULL