From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dan Carpenter Date: Fri, 17 Mar 2017 20:41:14 +0000 Subject: [patch] KVM: PPC: Book3S HV: check for kmalloc errors in ioctl Message-Id: <20170317204113.GA16505@mwanda> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Paolo Bonzini , David Gibson Cc: kvm@vger.kernel.org, Radim =?utf-8?B?S3LEjW3DocWZ?= , kernel-janitors@vger.kernel.org, kvm-ppc@vger.kernel.org, Paul Mackerras , linuxppc-dev@lists.ozlabs.org, Alexander Graf kzalloc() won't actually fail because sizeof(*resize) is small, but static checkers complain. Signed-off-by: Dan Carpenter diff --git a/arch/powerpc/kvm/book3s_64_mmu_hv.c b/arch/powerpc/kvm/book3s_64_mmu_hv.c index 8c68145ba1bd..710e491206ed 100644 --- a/arch/powerpc/kvm/book3s_64_mmu_hv.c +++ b/arch/powerpc/kvm/book3s_64_mmu_hv.c @@ -1487,6 +1487,10 @@ long kvm_vm_ioctl_resize_hpt_prepare(struct kvm *kvm, /* start new resize */ resize = kzalloc(sizeof(*resize), GFP_KERNEL); + if (!resize) { + ret = -ENOMEM; + goto out; + } resize->order = shift; resize->kvm = kvm; INIT_WORK(&resize->work, resize_hpt_prepare_work); From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from aserp1040.oracle.com (aserp1040.oracle.com [141.146.126.69]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 3vlHM93TMQzDqZH for ; Sat, 18 Mar 2017 07:41:57 +1100 (AEDT) Date: Fri, 17 Mar 2017 23:41:14 +0300 From: Dan Carpenter To: Paolo Bonzini , David Gibson Cc: Radim =?utf-8?B?S3LEjW3DocWZ?= , Alexander Graf , Benjamin Herrenschmidt , Paul Mackerras , Michael Ellerman , kvm@vger.kernel.org, kvm-ppc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, kernel-janitors@vger.kernel.org Subject: [patch] KVM: PPC: Book3S HV: check for kmalloc errors in ioctl Message-ID: <20170317204113.GA16505@mwanda> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , kzalloc() won't actually fail because sizeof(*resize) is small, but static checkers complain. Signed-off-by: Dan Carpenter diff --git a/arch/powerpc/kvm/book3s_64_mmu_hv.c b/arch/powerpc/kvm/book3s_64_mmu_hv.c index 8c68145ba1bd..710e491206ed 100644 --- a/arch/powerpc/kvm/book3s_64_mmu_hv.c +++ b/arch/powerpc/kvm/book3s_64_mmu_hv.c @@ -1487,6 +1487,10 @@ long kvm_vm_ioctl_resize_hpt_prepare(struct kvm *kvm, /* start new resize */ resize = kzalloc(sizeof(*resize), GFP_KERNEL); + if (!resize) { + ret = -ENOMEM; + goto out; + } resize->order = shift; resize->kvm = kvm; INIT_WORK(&resize->work, resize_hpt_prepare_work); From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dan Carpenter Subject: [patch] KVM: PPC: Book3S HV: check for kmalloc errors in ioctl Date: Fri, 17 Mar 2017 23:41:14 +0300 Message-ID: <20170317204113.GA16505@mwanda> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: kvm@vger.kernel.org, Radim =?utf-8?B?S3LEjW3DocWZ?= , kernel-janitors@vger.kernel.org, kvm-ppc@vger.kernel.org, Paul Mackerras , linuxppc-dev@lists.ozlabs.org, Alexander Graf To: Paolo Bonzini , David Gibson Return-path: Content-Disposition: inline List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: linuxppc-dev-bounces+glppe-linuxppc-embedded-2=m.gmane.org@lists.ozlabs.org Sender: "Linuxppc-dev" List-Id: kvm.vger.kernel.org kzalloc() won't actually fail because sizeof(*resize) is small, but static checkers complain. Signed-off-by: Dan Carpenter diff --git a/arch/powerpc/kvm/book3s_64_mmu_hv.c b/arch/powerpc/kvm/book3s_64_mmu_hv.c index 8c68145ba1bd..710e491206ed 100644 --- a/arch/powerpc/kvm/book3s_64_mmu_hv.c +++ b/arch/powerpc/kvm/book3s_64_mmu_hv.c @@ -1487,6 +1487,10 @@ long kvm_vm_ioctl_resize_hpt_prepare(struct kvm *kvm, /* start new resize */ resize = kzalloc(sizeof(*resize), GFP_KERNEL); + if (!resize) { + ret = -ENOMEM; + goto out; + } resize->order = shift; resize->kvm = kvm; INIT_WORK(&resize->work, resize_hpt_prepare_work);