[linux-audio-user] Problems appling realtime preempt patch to 2.6.12

[iainduncan at telus.net (Iain Duncan)]

Hi folks, wondering if anyone can help me. I successfully patched 2.6.12 
with the latest Ingo patch with the settings for Desktop-preempt, but 
when I try ( on a clean source tree patched again ) to compile with the 
full preempt option I'm getting:

  LD      .tmp_vmlinux1
drivers/built-in.o(.text+0xabbad): In function `carm_init_one':
: undefined reference to `there_is_no_init_MUTEX_LOCKED_for_RT_semaphores'
make: *** [.tmp_vmlinux1] Error 1

Anyone had this? The patch I am using is:
realtime-preempt-2.6.12-final-V0.7.51-27

The sources are vanilla 2.6.12 from kernel.org.

Thanks
Iain