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KVM: Don't free new memslot if allocation of said memslot fails

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The two implementations of kvm_arch_create_memslot() in x86 and PPC are
both good citizens and free up all local resources if creation fails.
Return immediately (via a superfluous goto) instead of calling
kvm_free_memslot().

Note, the call to kvm_free_memslot() is effectively an expensive nop in
this case as there are no resources to be freed.

No functional change intended.

Acked-by: Christoffer Dall <christoffer.dall@arm.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Sean Christopherson 2020-02-18 13:07:17 -08:00 committed by Paolo Bonzini
parent 13ea525517
commit 13f678894b
1 changed files with 1 additions and 1 deletions
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2
virt/kvm/kvm_main.c
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@ -1089,7 +1089,7 @@ int __kvm_set_memory_region(struct kvm *kvm,
new.userspace_addr = mem->userspace_addr;
if (kvm_arch_create_memslot(kvm, &new, npages))
goto out_free;
goto out;
}
/* Allocate page dirty bitmap if needed */