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[PATCH] vfs: use kstrdup() and check failing allocation
authorLi Zefan <lizf@cn.fujitsu.com>
Mon, 21 Jul 2008 10:06:36 +0000 (18:06 +0800)
committerAl Viro <viro@zeniv.linux.org.uk>
Sun, 27 Jul 2008 00:53:24 +0000 (20:53 -0400)
- 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>

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