[v3,02/15] KVM: Don't free new memslot if allocation of said memslot fails
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Message ID 20191024230744.14543-3-sean.j.christopherson@intel.com
State New
Headers show
Series
  • KVM: Dynamically size memslot arrays
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Commit Message

Sean Christopherson Oct. 24, 2019, 11:07 p.m. UTC
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>
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
---
 virt/kvm/kvm_main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Patch
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diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 52deb5621501..2d354fa11934 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -1026,7 +1026,7 @@  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 */