[S390] cio: ensure single load of irq handler pointer
authorHeiko Carstens <heiko.carstens@de.ibm.com>
Thu, 26 Mar 2009 14:24:10 +0000 (15:24 +0100)
committerMartin Schwidefsky <schwidefsky@de.ibm.com>
Thu, 26 Mar 2009 14:24:14 +0000 (15:24 +0100)
commit87fa5af80cdd5053b27a546725948c2b74ec82b2
tree1546f9e8ef711d5559638e7f9c570e2be242bb14
parent98c1c6825247c71e3d8a9a5439ba21fce7563014
[S390] cio: ensure single load of irq handler pointer

Add barrier to prevent compiler from reloading pointer to irq handler.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
drivers/s390/cio/airq.c