On Tue, 15 Sep 2020 17:20:49 +0100, Colin King wrote:
> The variable bit_per_pix is a u8 and is promoted in the multiplication
> to an int type and then sign extended to a u64. If the result of the
> int multiplication is greater than 0x7fffffff then the upper 32 bits will
> be set to 1 as a result of the sign extension. Avoid this by casting
> tu_size_reg to u64 to avoid sign extension and also a potential overflow.
Applied, thanks!
[1/1] drm/rockchip: cdn-dp: fix sign extension on an int multiply for a u64 result
commit: ce0cb93a5adb283f577cd4661f511047b5e39028
Best regards,
--
Heiko Stuebner <heiko@xxxxxxxxx>
