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| author | Markus Elfring <elfring@users.sourceforge.net> | 2017-01-22 11:30:21 +0100 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2017-02-17 12:29:42 +0100 |
| commit | f6a3b168e56abe094b5c93dbafc2f0a0bf64e702 (patch) | |
| tree | ac31f00c6b271d05ca3d6f528a1a8390d1af04f7 /virt | |
| parent | bd7e5b0899a429445cc6e3037c13f8b5ae3be903 (diff) | |
| download | linux-f6a3b168e56abe094b5c93dbafc2f0a0bf64e702.tar.gz linux-f6a3b168e56abe094b5c93dbafc2f0a0bf64e702.tar.xz | |
KVM: Return directly after a failed copy_from_user() in kvm_vm_compat_ioctl()
* Return directly after a call of the function "copy_from_user" failed
in a case block.
This issue was detected by using the Coccinelle software.
* Delete the jump label "out" which became unnecessary with
this refactoring.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'virt')
| -rw-r--r-- | virt/kvm/kvm_main.c | 5 |
1 files changed, 1 insertions, 4 deletions
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index 263a80513ad9..bd131c539c1e 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -3148,10 +3148,9 @@ static long kvm_vm_compat_ioctl(struct file *filp, struct compat_kvm_dirty_log compat_log; struct kvm_dirty_log log; - r = -EFAULT; if (copy_from_user(&compat_log, (void __user *)arg, sizeof(compat_log))) - goto out; + return -EFAULT; log.slot = compat_log.slot; log.padding1 = compat_log.padding1; log.padding2 = compat_log.padding2; @@ -3163,8 +3162,6 @@ static long kvm_vm_compat_ioctl(struct file *filp, default: r = kvm_vm_ioctl(filp, ioctl, arg); } - -out: return r; } #endif |