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-rw-r--r--sys/amd64/amd64/mem.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/sys/amd64/amd64/mem.c b/sys/amd64/amd64/mem.c
index d784e25..5ec6722 100644
--- a/sys/amd64/amd64/mem.c
+++ b/sys/amd64/amd64/mem.c
@@ -199,7 +199,7 @@ mmrw(dev_t dev, struct uio *uio, int flags)
if (error)
break;
- iov->iov_base += c;
+ iov->iov_base = (char *)iov->iov_base + c;
iov->iov_len -= c;
uio->uio_offset += c;
uio->uio_resid -= c;
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