Tidy-up vgic_get_common_attr() and vgic_set_common_attr() to use
{get,put}_user() instead of the more complex (and less type-safe)
copy_{from,to}_user().
Reviewed-by: Reiji Watanabe <reijiw@xxxxxxxxxx>
Signed-off-by: Marc Zyngier <maz@xxxxxxxxxx>
---
arch/arm64/kvm/vgic/vgic-kvm-device.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/arch/arm64/kvm/vgic/vgic-kvm-device.c b/arch/arm64/kvm/vgic/vgic-kvm-device.c
index 066b95d606fd..c17e5502c0b3 100644
--- a/arch/arm64/kvm/vgic/vgic-kvm-device.c
+++ b/arch/arm64/kvm/vgic/vgic-kvm-device.c
@@ -170,7 +170,7 @@ static int vgic_set_common_attr(struct kvm_device *dev,
u64 addr;
unsigned long type = (unsigned long)attr->attr;
- if (copy_from_user(&addr, uaddr, sizeof(addr)))
+ if (get_user(addr, uaddr))
return -EFAULT;
r = kvm_vgic_addr(dev->kvm, type, &addr, true);
@@ -233,14 +233,14 @@ static int vgic_get_common_attr(struct kvm_device *dev,
u64 addr;
unsigned long type = (unsigned long)attr->attr;
- if (copy_from_user(&addr, uaddr, sizeof(addr)))
+ if (get_user(addr, uaddr))
return -EFAULT;
r = kvm_vgic_addr(dev->kvm, type, &addr, false);
if (r)
return (r == -ENODEV) ? -ENXIO : r;
- if (copy_to_user(uaddr, &addr, sizeof(addr)))
+ if (put_user(addr, uaddr))
return -EFAULT;
break;
}
--
2.34.1
