linux-4.15-rc1/drivers/gpu/drm/i915/gvt/cmd_parser.c:1640: poor error checking ?

[David Binderman]

Hello there,

linux-4.15-rc1/drivers/gpu/drm/i915/gvt/cmd_parser.c:1640]: (style) Checking if unsigned variable 'bb_size' is less than zero.

Source code is

    /* get the size of the batch buffer */
    bb_size = find_bb_size(s);
    if (bb_size < 0)
        return -EINVAL;

but

static int find_bb_size(struct parser_exec_state *s)

so the code isn't properly checking the return value. Suggest code rework.

Regards

David Binderman