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SubjectRe: [PATCH 3/4] reset: tegra: check BPMP response return code
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On 07/09/17 10:31, Timo Alho wrote:
> Add checks for return code in BPMP response message.
>
> Signed-off-by: Timo Alho <talho@nvidia.com>
> ---
> drivers/reset/tegra/reset-bpmp.c | 9 ++++++++-
> 1 file changed, 8 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/reset/tegra/reset-bpmp.c b/drivers/reset/tegra/reset-bpmp.c
> index 5daf2ee..fac2db6 100644
> --- a/drivers/reset/tegra/reset-bpmp.c
> +++ b/drivers/reset/tegra/reset-bpmp.c
> @@ -23,6 +23,7 @@ static int tegra_bpmp_reset_common(struct reset_controller_dev *rstc,
> struct tegra_bpmp *bpmp = to_tegra_bpmp(rstc);
> struct mrq_reset_request request;
> struct tegra_bpmp_message msg;
> + int err;
>
> memset(&request, 0, sizeof(request));
> request.cmd = command;
> @@ -33,7 +34,13 @@ static int tegra_bpmp_reset_common(struct reset_controller_dev *rstc,
> msg.tx.data = &request;
> msg.tx.size = sizeof(request);
>
> - return tegra_bpmp_transfer(bpmp, &msg);
> + err = tegra_bpmp_transfer(bpmp, &msg);
> + if (err < 0)
> + return err;
> + else if (msg.rx.ret < 0)
> + return -EINVAL;
> +
> + return 0;
> }
>
> static int tegra_bpmp_reset_module(struct reset_controller_dev *rstc,

Acked-by: Jon Hunter <jonathanh@nvidia.com>

Cheers
Jon

--
nvpublic

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