From: Eric Farman <farman@xxxxxxxxxxxxx>
Let's initialize the host address to something that is invalid,
rather than letting it default to zero. This just makes it easier
to notice when a pin operation has failed or been skipped.
Signed-off-by: Eric Farman <farman@xxxxxxxxxxxxx>
Message-Id: <20190514234248.36203-5-farman@xxxxxxxxxxxxx>
Reviewed-by: Farhan Ali <alifm@xxxxxxxxxxxxx>
Signed-off-by: Cornelia Huck <cohuck@xxxxxxxxxx>
---
drivers/s390/cio/vfio_ccw_cp.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/s390/cio/vfio_ccw_cp.c b/drivers/s390/cio/vfio_ccw_cp.c
index e33265fb80b0..086faf2dacd3 100644
--- a/drivers/s390/cio/vfio_ccw_cp.c
+++ b/drivers/s390/cio/vfio_ccw_cp.c
@@ -91,8 +91,11 @@ static int pfn_array_alloc(struct pfn_array *pa, u64 iova, unsigned int len)
pa->pa_pfn = pa->pa_iova_pfn + pa->pa_nr;
pa->pa_iova_pfn[0] = pa->pa_iova >> PAGE_SHIFT;
- for (i = 1; i < pa->pa_nr; i++)
+ pa->pa_pfn[0] = -1ULL;
+ for (i = 1; i < pa->pa_nr; i++) {
pa->pa_iova_pfn[i] = pa->pa_iova_pfn[i - 1] + 1;
+ pa->pa_pfn[i] = -1ULL;
+ }
return 0;
}
--
2.20.1
