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Re: [Qemu-arm] [PATCH] misc: zynq-xadc: Fix off-by-one
From: |
Peter Maydell |
Subject: |
Re: [Qemu-arm] [PATCH] misc: zynq-xadc: Fix off-by-one |
Date: |
Mon, 18 Jan 2016 11:42:43 +0000 |
On 18 January 2016 at 07:22, Peter Crosthwaite
<address@hidden> wrote:
> This bounds check was off-by-one. Fix.
>
> Reported-by: Paolo Bonzini <address@hidden>
> Signed-off-by: Peter Crosthwaite <address@hidden>
> ---
> hw/misc/zynq-xadc.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/hw/misc/zynq-xadc.c b/hw/misc/zynq-xadc.c
> index 1a32595..d160ff2 100644
> --- a/hw/misc/zynq-xadc.c
> +++ b/hw/misc/zynq-xadc.c
> @@ -220,7 +220,7 @@ static void zynq_xadc_write(void *opaque, hwaddr offset,
> uint64_t val,
> break;
> }
>
> - if (xadc_reg > ZYNQ_XADC_NUM_ADC_REGS && xadc_cmd != CMD_NOP) {
> + if (xadc_reg >= ZYNQ_XADC_NUM_ADC_REGS && xadc_cmd != CMD_NOP) {
> qemu_log_mask(LOG_GUEST_ERROR, "read/write op to invalid xadc "
> "reg 0x%x\n", xadc_reg);
> break;
> --
> 1.9.1
Applied to target-arm.next, thanks.
-- PMM