From: Peng Zhang
> Sent: 10 April 2023 11:09
>
> 在 2023/4/10 17:46, Gang Li 写道:
> > On 2023/4/10 17:14, Peng Zhang wrote:
> >> The original code is:
> >> memset(pivs + tmp, 0, sizeof(unsigned long *) * (max_p - tmp));
> >>
> >> The type of variable pointed to by pivs is unsigned long, but the type
> >> used in sizeof is a pointer type. Change it to unsigned long.
> >>
> >
> > Maybe add a fix tag?
> >
> > Fixes: 54a611b60590 ("Maple Tree: add new data structure")
>
> Maybe sizeof(void *) is equal to sizeof(unsigned long)
> in most architectures, so I don't know if it counts as a fix.
Might be worth adding; "Fortunately the sizes are the same."
> >> if (tmp < max_p)
> >> memset(pivs + tmp, 0,
> >> - sizeof(unsigned long *) * (max_p - tmp));
> >> + sizeof(unsigned long) * (max_p - tmp));
sizeof (*pivs)
> >> if (tmp < mt_slots[mt])
> >> memset(slots + tmp, 0, sizeof(void *) * (max_s - tmp));
and sizeof (*slots)
David
-
Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK
Registration No: 1397386 (Wales)
