Messages in this thread Patch in this message | | | Date | Fri, 27 Apr 2007 16:05:09 +0200 | From | Martin Schwidefsky <> | Subject | [patch 06/38] cio: observe chpid valid flag |
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From: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Check validity flag of CHPID description data before continuing with channel-path initialization.
Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> ---
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.
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