linux

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Heiko Carstens dc5008b9bf s390/kvm: remove explicit -EFAULT return code checking on guest access

Let's change to the paradigm that every return code from guest memory
access functions that is not zero translates to -EFAULT and do not
explictly compare.
Explictly comparing the return value with -EFAULT has already shown to
be a bit fragile. In addition this is closer to the handling of
copy_to/from_user functions, which imho is in general a good idea.

Also shorten the return code handling in interrupt.c a bit.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>

2013-03-07 16:21:21 -03:00

diag.c

KVM: s390: Wire up ioeventfd.

2013-03-05 19:12:17 -03:00

gaccess.h

s390/kvm,gaccess: fix guest access return code handling

2013-03-07 16:21:19 -03:00

intercept.c

s390/kvm: remove explicit -EFAULT return code checking on guest access

2013-03-07 16:21:21 -03:00

interrupt.c

s390/kvm: remove explicit -EFAULT return code checking on guest access