Re: [Outreachy kernel] [PATCH v5] staging: vt6656: add error code handling to unused variable

From: Stefano Brivio
Date: Mon Mar 30 2020 - 17:06:51 EST


On Mon, 30 Mar 2020 11:45:17 -0700
"John B. Wyatt IV" <jbwyatt4@xxxxxxxxx> wrote:

> Add error code handling to unused 'ret' variable that was never used.
> Return an error code from functions called within vnt_radio_power_on.
>
> Issue reported by coccinelle (coccicheck).
>
> Suggested-by: Quentin Deslandes <quentin.deslandes@xxxxxxxxxxx>
> Suggested-by: Stefano Brivio <sbrivio@xxxxxxxxxx>
> Reviewed-by: Quentin Deslandes <quentin.deslandes@xxxxxxxxxxx>
> Signed-off-by: John B. Wyatt IV <jbwyatt4@xxxxxxxxx>
> ---
> v5: Remove Suggested-by: Julia Lawall above seperator line.
> Remove break; statement in switch block.
> break; removal checked by both gcc compile and checkpatch.
>
> [...]
>
> @@ -734,14 +738,15 @@ int vnt_radio_power_on(struct vnt_private *priv)
> case RF_VT3226:
> case RF_VT3226D0:
> case RF_VT3342A0:
> - vnt_mac_reg_bits_on(priv, MAC_REG_SOFTPWRCTL,
> - (SOFTPWRCTL_SWPE2 | SOFTPWRCTL_SWPE3));
> + ret = vnt_mac_reg_bits_on(priv, MAC_REG_SOFTPWRCTL,
> + (SOFTPWRCTL_SWPE2 |
> + SOFTPWRCTL_SWPE3));
> break;
> }
> + if (ret)
> + return ret;

Did you send the wrong version perhaps?

--
Stefano