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KVM: s390: Cleanup kvm_arch_init error path

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Both kvm_s390_gib_destroy and debug_unregister test if the needed
pointers are not NULL and hence can be called unconditionally.

Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
Link: https://lore.kernel.org/kvm/20191002075627.3582-1-frankja@linux.ibm.com
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
This commit is contained in:
Janosch Frank 2019-10-02 03:56:27 -04:00 committed by Christian Borntraeger
parent 7775cbaa11
commit f76f637164
1 changed files with 7 additions and 11 deletions
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18
arch/s390/kvm/kvm-s390.c
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@ -453,16 +453,14 @@ static void kvm_s390_cpu_feat_init(void)
int kvm_arch_init(void *opaque)
{
int rc;
int rc = -ENOMEM;
kvm_s390_dbf = debug_register("kvm-trace", 32, 1, 7 * sizeof(long));
if (!kvm_s390_dbf)
return -ENOMEM;
if (debug_register_view(kvm_s390_dbf, &debug_sprintf_view)) {
rc = -ENOMEM;
goto out_debug_unreg;
}
if (debug_register_view(kvm_s390_dbf, &debug_sprintf_view))
goto out;
kvm_s390_cpu_feat_init();
@ -470,19 +468,17 @@ int kvm_arch_init(void *opaque)
rc = kvm_register_device_ops(&kvm_flic_ops, KVM_DEV_TYPE_FLIC);
if (rc) {
pr_err("A FLIC registration call failed with rc=%d\n", rc);
goto out_debug_unreg;
goto out;
}
rc = kvm_s390_gib_init(GAL_ISC);
if (rc)
goto out_gib_destroy;
goto out;
return 0;
out_gib_destroy:
kvm_s390_gib_destroy();
out_debug_unreg:
debug_unregister(kvm_s390_dbf);
out:
kvm_arch_exit();
return rc;
}