[PATCH] pcmcia: warn if driver requests exclusive, but gets a shared IRQ

The patch below cleans up the pcmcia code a bit on the IRQ side (I did
this while debugging the problem just so I could read wtf it was doing),
and also adds a warning and passes back the correct information when a
device asks for exclusive but gets given shared. This at least means the
dmesg dump of a problem triggered by this will have a signature to find.

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>