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Message-ID: <733949e2-1086-f012-aa39-e3b84feb2688@linux.ibm.com>
Date: Wed, 26 Oct 2022 09:36:42 -0400
From: Matthew Rosato <mjrosato@...ux.ibm.com>
To: Rafael Mendonca <rafaelmendsr@...il.com>,
Eric Farman <farman@...ux.ibm.com>,
Christian Borntraeger <borntraeger@...ux.ibm.com>,
Janosch Frank <frankja@...ux.ibm.com>,
Claudio Imbrenda <imbrenda@...ux.ibm.com>,
David Hildenbrand <david@...hat.com>,
Heiko Carstens <hca@...ux.ibm.com>,
Vasily Gorbik <gor@...ux.ibm.com>,
Alexander Gordeev <agordeev@...ux.ibm.com>,
Sven Schnelle <svens@...ux.ibm.com>
Cc: linux-s390@...r.kernel.org, kvm@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: Re: [PATCH] KVM: s390: pci: Fix allocation size of aift kzdev
elements
On 10/25/22 9:32 PM, Rafael Mendonca wrote:
> The 'kzdev' field of struct 'zpci_aift' is an array of pointers to
> 'kvm_zdev' structs. Allocate the proper size accordingly.
>
> Reported by Coccinelle:
> WARNING: Use correct pointer type argument for sizeof
>
> Fixes: 98b1d33dac5f ("KVM: s390: pci: do initial setup for AEN interpretation")
> Signed-off-by: Rafael Mendonca <rafaelmendsr@...il.com>
Thanks for reporting & fixing.
Reviewed-by: Matthew Rosato <mjrosato@...ux.ibm.com>
> ---
> arch/s390/kvm/pci.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/s390/kvm/pci.c b/arch/s390/kvm/pci.c
> index c50c1645c0ae..ded1af2ddae9 100644
> --- a/arch/s390/kvm/pci.c
> +++ b/arch/s390/kvm/pci.c
> @@ -126,7 +126,7 @@ int kvm_s390_pci_aen_init(u8 nisc)
> return -EPERM;
>
> mutex_lock(&aift->aift_lock);
> - aift->kzdev = kcalloc(ZPCI_NR_DEVICES, sizeof(struct kvm_zdev),
> + aift->kzdev = kcalloc(ZPCI_NR_DEVICES, sizeof(struct kvm_zdev *),
> GFP_KERNEL);
> if (!aift->kzdev) {
> rc = -ENOMEM;
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