commit b3a686f47a3615fcfec0a01c4103c50bb9621369
author Cornelia Huck <cornelia.huck@de.ibm.com> Mon Jul 14 09:58:48 2008 +0200
committer Heiko Carstens <heiko.carstens@de.ibm.com> Mon Jul 14 10:02:06 2008 +0200
tree 5929e2a7cbca0148d68b822e50887bf61aa73f66
parent 44a1c19e3b47a7ac596808177ccd250b95f5e688

[S390] cio: Base message subchannel handling.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>

drivers/s390/cio/css.c

diff --git a/drivers/s390/cio/css.c b/drivers/s390/cio/css.c
index bc3a8e4..062716cf 100644
--- a/drivers/s390/cio/css.c
+++ b/drivers/s390/cio/css.c
@@ -332,6 +332,8 @@
 {
 	if ((schib->pmcw.st == SUBCHANNEL_TYPE_IO) && !schib->pmcw.dnv)
 		return 0;
+	if ((schib->pmcw.st == SUBCHANNEL_TYPE_MSG) && !schib->pmcw.w)
+		return 0;
 	return 1;
 }
 EXPORT_SYMBOL_GPL(css_sch_is_valid);