In kmalloc failing path, we shouldn't free pointers in 'info',
because the struct 'info' is uninitilized when kmalloc is called.
And when kmalloc returns NULL, it's needless to kfree it.
Signed-off-by: WANG Cong <wangcong@zeuux.org> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Reviewed-by: Pekka Enberg <penberg@cs.helsinki.fi>
-- Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>