On 15/8/24 15:12, Peter Maydell wrote:
In kvm_init_vcpu()and do_kvm_destroy_vcpu(), the return value from kvm_ioctl(..., KVM_GET_VCPU_MMAP_SIZE, ...) is an 'int', but we put it into a 'long' logal variable mmap_size.
Typo "local".
Coverity then complains that there might be a truncation when we copy that value into the 'int ret' which we use for returning a value in an error-exit codepath. This can't ever actually overflow because the value was in an 'int' to start with, but it makes more sense to use 'int' for mmap_size so we don't do the widen-then-narrow sequence in the first place. Resolves: Coverity CID 1547515 Signed-off-by: Peter Maydell <peter.mayd...@linaro.org> --- Borderline whether this was worth changing, but I came down on the side of "yes". --- accel/kvm/kvm-all.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
Reviewed-by: Philippe Mathieu-Daudé <phi...@linaro.org>
