Re: [PATCH v3 3/4] drm/mediatek: Add casting before assign

From: Jason-JH Lin (林睿祥)
Date: Fri Jul 14 2023 - 02:47:14 EST


Hi CK,

Thanks for the reviews.

On Fri, 2023-07-14 at 05:45 +0000, CK Hu (胡俊光) wrote:
> Hi, Jason:
>
> On Wed, 2023-06-21 at 18:22 +0800, Jason-JH.Lin wrote:
> > 1. Add casting before assign to avoid the unintentional integer
> > overflow or unintended sign extension.
> > 2. Add a int varriable for multiplier calculation instead of
> > calculating
> > different types multiplier with dma_addr_t varriable directly.
>
> I agree with these modification, but the title does not match the
> modification.
>
> Regards,
> CK

I'll change the title and commit msg at the next version below:

Fix unintentional integer overflow in multiplying different types

1. Instead of multiplying 2 variable of different types. Change to
assign a value of one variable and then multiply the other variable.

2. Add a int variable for multiplier calculation instead of calculating
different types multiplier with dma_addr_t variable directly.


Thanks!

Regards,
Jason-JH.Lin
>