Re: [PATCH][next] power: avs: fix uninitialized error return on failed cpr_read_fuse_uV call

From: Bjorn Andersson
Date: Mon Jan 06 2020 - 14:15:04 EST


On Mon 06 Jan 04:05 PST 2020, Colin King wrote:

> From: Colin Ian King <colin.king@xxxxxxxxxxxxx>
>
> Currently when the call cpr_read_fuse_uV returns an error the value in the
> uninitialized variable ret is returned. Fix this by instread returning the
> error value in the variable uV.
>

Reviewed-by: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx>

> Addresses-Coverity: ("Uninitialized scalar variable")
> Fixes: bf6910abf548 ("power: avs: Add support for CPR (Core Power Reduction)")
> Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>
> ---
> drivers/power/avs/qcom-cpr.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/power/avs/qcom-cpr.c b/drivers/power/avs/qcom-cpr.c
> index 9247f53550b3..0321729431a5 100644
> --- a/drivers/power/avs/qcom-cpr.c
> +++ b/drivers/power/avs/qcom-cpr.c
> @@ -922,7 +922,7 @@ static int cpr_fuse_corner_init(struct cpr_drv *drv)
> uV = cpr_read_fuse_uV(desc, fdata, fuses->init_voltage,
> step_volt, drv);
> if (uV < 0)
> - return ret;
> + return uV;
>
> fuse->min_uV = fdata->min_uV;
> fuse->max_uV = fdata->max_uV;
> --
> 2.24.0
>