Re: [PATCH] power: supply: da9150-fg: fix potential overflow

[Sebastian Reichel]

On Thu, 30 Jan 2025 09:00:34 +0000, Ваторопин Андрей wrote:
> Size of variable sd_gain equals four bytes - DA9150_QIF_SD_GAIN_SIZE.
> Size of variable shunt_val equals two bytes - DA9150_QIF_SHUNT_VAL_SIZE.
> 
> The expression sd_gain * shunt_val is currently being evaluated using
> 32-bit arithmetic. So during the multiplication an overflow may occur.
> 
> As the value of type 'u64' is used as storage for the eventual result, put
> ULL variable at the first position of each expression in order to give the
> compiler complete information about the proper arithmetic to use. According
> to C99 the guaranteed width for a variable of type 'unsigned long long' >=
> 64 bits.
> 
> [...]

Applied, thanks!

[1/1] power: supply: da9150-fg: fix potential overflow
      commit: 3fb3cb4350befc4f901c54e0cb4a2a47b1302e08

Best regards,
-- 
Sebastian Reichel <sebastian.reichel@xxxxxxxxxxxxx>