xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

KVM: arm/arm64: vgic: Check return value for kvm_register_vgic_device

Browse Source 
kvm_register_device_ops() can return an error, so lets check its return
value and propagate this up the call chain.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Marc Zyngier <marc.zyngier@arm.com>
Tested-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
This commit is contained in:
Andre Przywara
2016-07-15 12:43:23 +01:00
committed by Marc Zyngier
parent 8f6cdc1c2e
commit 42c8870f90
4 changed files with 31 additions and 12 deletions
Download Patch File Download Diff File Expand all files Collapse all files

15
virt/kvm/arm/vgic/vgic-kvm-device.c
View File

@@ -210,20 +210,24 @@ static void vgic_destroy(struct kvm_device *dev)
kfree(dev);
}
void kvm_register_vgic_device(unsigned long type)
int kvm_register_vgic_device(unsigned long type)
{
int ret = -ENODEV;
switch (type) {
case KVM_DEV_TYPE_ARM_VGIC_V2:
kvm_register_device_ops(&kvm_arm_vgic_v2_ops,
KVM_DEV_TYPE_ARM_VGIC_V2);
ret = kvm_register_device_ops(&kvm_arm_vgic_v2_ops,
KVM_DEV_TYPE_ARM_VGIC_V2);
break;
#ifdef CONFIG_KVM_ARM_VGIC_V3
case KVM_DEV_TYPE_ARM_VGIC_V3:
kvm_register_device_ops(&kvm_arm_vgic_v3_ops,
KVM_DEV_TYPE_ARM_VGIC_V3);
ret = kvm_register_device_ops(&kvm_arm_vgic_v3_ops,
KVM_DEV_TYPE_ARM_VGIC_V3);
break;
#endif
}
return ret;
}
/** vgic_attr_regs_access: allows user space to read/write VGIC registers
@@ -428,4 +432,3 @@ struct kvm_device_ops kvm_arm_vgic_v3_ops = {
};
#endif /* CONFIG_KVM_ARM_VGIC_V3 */