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Re: [Qemu-devel] [PATCH 1/2] dma-helpers: Initialize DMAAIOCB in_cancel
From: |
Stefan Hajnoczi |
Subject: |
Re: [Qemu-devel] [PATCH 1/2] dma-helpers: Initialize DMAAIOCB in_cancel flag |
Date: |
Fri, 4 Apr 2014 09:19:11 +0200 |
User-agent: |
Mutt/1.5.21 (2010-09-15) |
On Fri, Mar 28, 2014 at 02:22:49PM +0000, Peter Maydell wrote:
> Initialize the dbs->in_cancel flag in dma_bdrv_io(), since qemu_aio_get()
> does not return zero-initialized memory. Spotted by the clang sanitizer
> (which complained when the value loaded in dma_complete() was not valid
> for a bool type); this might have resulted in leaking the AIO block.
>
> Signed-off-by: Peter Maydell <address@hidden>
> ---
>
> dma-helpers.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/dma-helpers.c b/dma-helpers.c
> index c9620a5..5f421e9 100644
> --- a/dma-helpers.c
> +++ b/dma-helpers.c
> @@ -213,6 +213,7 @@ BlockDriverAIOCB *dma_bdrv_io(
> dbs->sg_cur_index = 0;
> dbs->sg_cur_byte = 0;
> dbs->dir = dir;
> + dbs->in_cancel = false;
> dbs->io_func = io_func;
> dbs->bh = NULL;
> qemu_iovec_init(&dbs->iov, sg->nsg);
Worth merging for 2.0.
Reviewed-by: Stefan Hajnoczi <address@hidden>
- Re: [Qemu-devel] [PATCH 1/2] dma-helpers: Initialize DMAAIOCB in_cancel flag,
Stefan Hajnoczi <=