Re: [PATCH V4 net-bugfixs] net/ethernet: Update ret when ptp_clock is ERROR

From: Grygorii Strashko
Date: Wed Nov 11 2020 - 08:24:38 EST


hi Jakub,

On 11/11/2020 14:32, Richard Cochran wrote:
On Wed, Nov 11, 2020 at 05:24:41PM +0800, Wang Qing wrote:
We always have to update the value of ret, otherwise the error value
may be the previous one. And ptp_clock_register() never return NULL
when PTP_1588_CLOCK enable.

NAK.

Your code must handle the possibility that ptp_clock_register() can
return NULL. Why?

1. Because that follows the documented API.

2. Because people will copy/paste this driver.

3. Because the Kconfig for your driver can change without warning.

Following Richard's comments v1 of the patch has to be applied [1].
I've also added my Reviewed-by there.

[1] https://lore.kernel.org/patchwork/patch/1334067/
--
Best regards,
grygorii