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| author | Alex Williamson <alex.williamson@hp.com> | 2007-12-30 12:53:54 -0700 |
|---|---|---|
| committer | Alex Williamson <alex.williamson@hp.com> | 2007-12-30 12:53:54 -0700 |
| commit | cb01185e0e63ae1191771b13fba9cdffe8b9afd0 (patch) | |
| tree | 9eb397c5d77a0b1f162b3922fccc8ac0cd300d5d | |
| parent | f2a654841815b8a313c2ae3981066611caef5c2c (diff) | |
| download | xen-cb01185e0e63ae1191771b13fba9cdffe8b9afd0.tar.gz xen-cb01185e0e63ae1191771b13fba9cdffe8b9afd0.tar.bz2 xen-cb01185e0e63ae1191771b13fba9cdffe8b9afd0.zip | |
[IA64] Fix XEN_DOMCTL_shadow_op. it should check copy_to_guest() return value.
Pointed out by Samuel Thibault.
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
| -rw-r--r-- | xen/arch/ia64/xen/dom0_ops.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/xen/arch/ia64/xen/dom0_ops.c b/xen/arch/ia64/xen/dom0_ops.c index a37eef1e83..438796c0cf 100644 --- a/xen/arch/ia64/xen/dom0_ops.c +++ b/xen/arch/ia64/xen/dom0_ops.c @@ -168,7 +168,8 @@ long arch_do_domctl(xen_domctl_t *op, XEN_GUEST_HANDLE(xen_domctl_t) u_domctl) { ret = shadow_mode_control(d, &op->u.shadow_op); put_domain(d); - copy_to_guest(u_domctl, op, 1); + if (copy_to_guest(u_domctl, op, 1)) + ret = -EFAULT; } } break; |