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kvm: use more precise cast and do not drop __user 

Sparse complains on a call to get_compat_sigset, fix it.  The "if"
right above explains that sigmask_arg->sigset is basically a
compat_sigset_t.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2020-07-02 05:39:31 -04:00
parent 6e1d72f1ea
commit 1393b4aaf9
1 changed files with 2 additions and 1 deletions
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3
virt/kvm/kvm_main.c
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@ -3350,7 +3350,8 @@ static long kvm_vcpu_compat_ioctl(struct file *filp,
if (kvm_sigmask.len != sizeof(compat_sigset_t))
goto out;
r = -EFAULT;
if (get_compat_sigset(&sigset, (void *)sigmask_arg->sigset))
if (get_compat_sigset(&sigset,
(compat_sigset_t __user *)sigmask_arg->sigset))
goto out;
r = kvm_vcpu_ioctl_set_sigmask(vcpu, &sigset);
} else