From: Peter Oberparleiter Check validity flag of CHPID description data before continuing with channel-path initialization. Signed-off-by: Peter Oberparleiter Signed-off-by: Martin Schwidefsky --- drivers/s390/cio/chp.c | 4 ++++ 1 files changed, 4 insertions(+) Index: quilt-2.6/drivers/s390/cio/chp.c =================================================================== --- quilt-2.6.orig/drivers/s390/cio/chp.c 2007-04-27 16:04:53.000000000 +0200 +++ quilt-2.6/drivers/s390/cio/chp.c 2007-04-27 16:04:53.000000000 +0200 @@ -339,6 +339,10 @@ ret = chsc_determine_channel_path_description(chpid, &chp->desc); if (ret) goto out_free; + if ((chp->desc.flags & 0x80) == 0) { + ret = -ENODEV; + goto out_free; + } /* Get channel-measurement characteristics. */ if (css_characteristics_avail && css_chsc_characteristics.scmc && css_chsc_characteristics.secm) { -- blue skies, Martin. "Reality continues to ruin my life." - Calvin. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/