tree bd0e169bc0d2a802cd4ea58baf957bfa4602e956
parent 672b16b2f66c149888bd876a4f92342112205fe1
author Li Zefan <lizf@cn.fujitsu.com> 1216634796 +0800
committer Al Viro <viro@zeniv.linux.org.uk> 1217120004 -0400

[PATCH] vfs: use kstrdup() and check failing allocation

- use kstrdup() instead of kmalloc() + memcpy()
- return NULL if allocating ->mnt_devname failed
- mnt_devname should be const

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Acked-by: Cyrill Gorcunov <gorcunov@gmail.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>