This is a note to let you know that I have just added a patch titled

    MIPS: KVM: Remove redundant NULL checks before kfree()

to the linux-3.11.y-queue branch of the 3.11.y.z extended stable tree 
which can be found at:

 
http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.11.y-queue

If you, or anyone else, feels it should not be added to this tree, please 
reply to this email.

For more information about the 3.11.y.z tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable

Thanks.
-Luis

------

>From 58d267632e7edae4b73fe577261713f68a0038d8 Mon Sep 17 00:00:00 2001
From: James Hogan <james.ho...@imgtec.com>
Date: Thu, 29 May 2014 10:16:44 +0100
Subject: MIPS: KVM: Remove redundant NULL checks before kfree()

commit c6c0a6637f9da54f9472144d44f71cf847f92e20 upstream.

The kfree() function already NULL checks the parameter so remove the
redundant NULL checks before kfree() calls in arch/mips/kvm/.

Signed-off-by: James Hogan <james.ho...@imgtec.com>
Cc: Paolo Bonzini <pbonz...@redhat.com>
Cc: Gleb Natapov <g...@kernel.org>
Cc: kvm@vger.kernel.org
Cc: Ralf Baechle <r...@linux-mips.org>
Cc: linux-m...@linux-mips.org
Cc: Sanjay Lal <sanj...@kymasys.com>
Signed-off-by: Paolo Bonzini <pbonz...@redhat.com>
Signed-off-by: Luis Henriques <luis.henriq...@canonical.com>
---
 arch/mips/kvm/kvm_mips.c | 12 +++---------
 1 file changed, 3 insertions(+), 9 deletions(-)

diff --git a/arch/mips/kvm/kvm_mips.c b/arch/mips/kvm/kvm_mips.c
index 426345ac6f6e..7e78af0e57de 100644
--- a/arch/mips/kvm/kvm_mips.c
+++ b/arch/mips/kvm/kvm_mips.c
@@ -149,9 +149,7 @@ void kvm_mips_free_vcpus(struct kvm *kvm)
                if (kvm->arch.guest_pmap[i] != KVM_INVALID_PAGE)
                        kvm_mips_release_pfn_clean(kvm->arch.guest_pmap[i]);
        }
-
-       if (kvm->arch.guest_pmap)
-               kfree(kvm->arch.guest_pmap);
+       kfree(kvm->arch.guest_pmap);

        kvm_for_each_vcpu(i, vcpu, kvm) {
                kvm_arch_vcpu_free(vcpu);
@@ -384,12 +382,8 @@ void kvm_arch_vcpu_free(struct kvm_vcpu *vcpu)

        kvm_mips_dump_stats(vcpu);

-       if (vcpu->arch.guest_ebase)
-               kfree(vcpu->arch.guest_ebase);
-
-       if (vcpu->arch.kseg0_commpage)
-               kfree(vcpu->arch.kseg0_commpage);
-
+       kfree(vcpu->arch.guest_ebase);
+       kfree(vcpu->arch.kseg0_commpage);
 }

 void kvm_arch_vcpu_destroy(struct kvm_vcpu *vcpu)
--
1.9.1

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