Commit 5bd28eae authored by Ming Qian's avatar Ming Qian Committed by Hans Verkuil
Browse files

media: amphion: ensure the bitops don't cross boundaries 



the supported_instance_count determine the instance index range,
it shouldn't exceed the bits number of instance_mask,
otherwise the bitops of instance_mask may cross boundaries

Fixes: 9f599f35 ("media: amphion: add vpu core driver")
Reviewed-by: default avatarNicolas Dufresne <nicolas.dufresne@collabora.com>
Signed-off-by: default avatarMing Qian <ming.qian@nxp.com>
Signed-off-by: default avatarHans Verkuil <hverkuil-cisco@xs4all.nl>
parent cf6a0635

drivers/media/platform/amphion/vpu_core.c

+2 −0
Original line number Diff line number Diff line
@@ -88,6 +88,8 @@ static int vpu_core_boot_done(struct vpu_core *core) 


		core->supported_instance_count = min(core->supported_instance_count, count);

	}

	if (core->supported_instance_count >= BITS_PER_TYPE(core->instance_mask))

		core->supported_instance_count = BITS_PER_TYPE(core->instance_mask);

	core->fw_version = fw_version;

	vpu_core_set_state(core, VPU_CORE_ACTIVE);