In lots of KALLSYMS symbol resolution in modules, I've noticed the
appearance of symbols with no names:

Jun 27 20:55:26 raven kernel:  [<10131440>] schedule_timeout+0x78/0xdc
Jun 27 20:55:26 raven kernel:  [<000f8240>] +0x4e0/0x598 [sunrpc]
Jun 27 20:55:26 raven kernel:  [<0014504c>] +0x150/0x43c [nfsd]
Jun 27 20:55:26 raven kernel:  [<10109c5c>] ret_from_kernel_thread+0x1c/0x24

The problem seems to be that get_ksymbol doesn't eliminate empty symbol
names when it does resolution.  The attached patch should fix this.

James