From: Sam Ravnborg <sam@ravnborg.org>

From: Daniel Mack <daniel@zonque.org>, me

modpost unconditionally searched for ".o" assuming this is always the
suffix of the module.  This fails in two cases:

a) when building external modules where any directory include ".o" in
   the name.  One example is a directory named: .../cvs.alsa.org/...

b) when someone names a kernel directory so it contains ".o".  One
   example is drivers/scsi/aic.ok/...

case b) was triggered by renaming the directory for aic7xxx, and modifying
Makefile and Kconfig.  This caused make modules to fail.