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From: Paolo Bonzini <pbonzini@redhat.com>
To: John Snow <jsnow@redhat.com>, qemu-devel@nongnu.org
Cc: kwolf@redhat.com, armbru@redhat.com, stefanha@redhat.com, mst@redhat.com
Subject: Re: [Qemu-devel] [PATCH 5/6] ide: Correct handling of malformed/short PRDTs
Date: Mon, 27 Oct 2014 11:06:41 +0100	[thread overview]
Message-ID: <544E1931.8030209@redhat.com> (raw)
In-Reply-To: <1412204151-18117-6-git-send-email-jsnow@redhat.com>



On 10/02/2014 12:55 AM, John Snow wrote:
> +    /* If this is true, you're leaking memory. */

... or qsg is uninitialized, which would work because qemu_sglist_init
initializes all fields.

This is the only comment I have on the series. :)

Paolo

> +    assert(qsg->sg == NULL);
> +
>      qsg->sg = g_malloc(alloc_hint * sizeof(ScatterGatherEntry));

> 
> @@ -1147,7 +1147,7 @@ static int ahci_dma_prepare_buf(IDEDMA *dma, int is_write)
>      s->io_buffer_size = s->sg.size;
>  
>      DPRINTF(ad->port_no, "len=%#x\n", s->io_buffer_size);
> -    return s->io_buffer_size != 0;
> +    return s->io_buffer_size / 512 != 0;
>  }

  reply	other threads:[~2014-10-27 10:07 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-10-01 22:55 [Qemu-devel] [PATCH 0/6] AHCI Device Fixes John Snow
2014-10-01 22:55 ` [Qemu-devel] [PATCH 1/6] ahci: Correct PIO/D2H FIS responses John Snow
2014-10-27  9:32   ` Markus Armbruster
2014-10-27 15:43     ` John Snow
2014-10-27 15:59       ` Markus Armbruster
2014-10-01 22:55 ` [Qemu-devel] [PATCH 2/6] ahci: Update byte count after DMA completion John Snow
2014-10-01 22:55 ` [Qemu-devel] [PATCH 3/6] ide: repair PIO transfers for cases where nsector > 1 John Snow
2014-10-01 22:55 ` [Qemu-devel] [PATCH 4/6] ahci: unify sglist preparation John Snow
2014-10-01 22:55 ` [Qemu-devel] [PATCH 5/6] ide: Correct handling of malformed/short PRDTs John Snow
2014-10-27 10:06   ` Paolo Bonzini [this message]
2014-10-27 18:30     ` John Snow
2014-10-01 22:55 ` [Qemu-devel] [PATCH 6/6] ahci: Fix SDB FIS Construction John Snow
2014-10-16  9:36 ` [Qemu-devel] [PATCH 0/6] AHCI Device Fixes John Snow
2014-10-25 20:03 ` Michael S. Tsirkin
2014-10-27 10:07 ` Paolo Bonzini
2014-10-28 13:51 ` Stefan Hajnoczi
2014-10-28 23:54   ` John Snow
2014-10-29  0:03     ` Paolo Bonzini
2014-10-29  0:06       ` John Snow
2014-10-29  0:27         ` Paolo Bonzini
2014-10-29  1:28           ` John Snow
2014-10-29  8:58             ` Paolo Bonzini
2014-10-30 10:52             ` Stefan Hajnoczi

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