m68k/amiga: Chip RAM - Change chipavail to an atomic_t

While the core resource handling code is safe, our global counter must
still be protected against concurrent modifications.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
This commit is contained in:
Geert Uytterhoeven 2011-04-24 23:40:51 +02:00
commit cab49bc95d