[S390] cio: ccwgroup register vs. unregister.
authorCornelia Huck <cornelia.huck@de.ibm.com>
Fri, 27 Apr 2007 14:01:37 +0000 (16:01 +0200)
committerMartin Schwidefsky <schwidefsky@de.ibm.com>
Fri, 27 Apr 2007 14:01:41 +0000 (16:01 +0200)
commitd76123eb357a4baa653714183df286c1bb99f707
treeb7244cc14038bc337d89d7a00acd847626438ffe
parent82b7ac058f60e0c92f9237fbaf440671f437ecdf
[S390] cio: ccwgroup register vs. unregister.

Introduce a mutex for struct ccwgroup to prevent simuntaneous
register/unregister on the same ccwgroup device.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
drivers/s390/cio/ccwgroup.c
include/asm-s390/ccwgroup.h