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Re: [Qemu-stable] [PATCH] scsi: mptsas: fix the wrong reading size in fe
From: |
Paolo Bonzini |
Subject: |
Re: [Qemu-stable] [PATCH] scsi: mptsas: fix the wrong reading size in fetch request |
Date: |
Tue, 14 Mar 2017 11:57:47 +0100 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.7.0 |
On 14/03/2017 11:56, Li Qiang wrote:
> When fetching request, it should read sizeof(*hdr), not the
> pointer hdr.
>
> Signed-off-by: Li Qiang <address@hidden>
> ---
> hw/scsi/mptsas.c | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/hw/scsi/mptsas.c b/hw/scsi/mptsas.c
> index 2e091c0..765ab53 100644
> --- a/hw/scsi/mptsas.c
> +++ b/hw/scsi/mptsas.c
> @@ -756,7 +756,7 @@ static void mptsas_fetch_request(MPTSASState *s)
>
> /* Read the message header from the guest first. */
> addr = s->host_mfa_high_addr | MPTSAS_FIFO_GET(s, request_post);
> - pci_dma_read(pci, addr, req, sizeof(hdr));
> + pci_dma_read(pci, addr, req, sizeof(*hdr));
>
> if (hdr->Function < ARRAY_SIZE(mpi_request_sizes) &&
> mpi_request_sizes[hdr->Function]) {
> @@ -766,8 +766,8 @@ static void mptsas_fetch_request(MPTSASState *s)
> */
> size = mpi_request_sizes[hdr->Function];
> assert(size <= MPTSAS_MAX_REQUEST_SIZE);
> - pci_dma_read(pci, addr + sizeof(hdr), &req[sizeof(hdr)],
> - size - sizeof(hdr));
> + pci_dma_read(pci, addr + sizeof(*hdr), &req[sizeof(*hdr)],
> + size - sizeof(*hdr));
> }
>
> if (hdr->Function == MPI_FUNCTION_SCSI_IO_REQUEST) {
>
Cc: address@hidden
Queued for 2.9, thanks.
Paolo
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