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SubjectRe: [PATCH][drm-next] drm/i915/gvt: ensure -ve return value is handled correctly
On 2017.09.19 16:55:34 +0100, Colin King wrote:
> From: Colin Ian King <colin.king@canonical.com>
>
> An earlier fix changed the return type from find_bb_size however the
> integer return is being assigned to a unsigned int so the -ve error
> check will never be detected. Make bb_size an int to fix this.
>
> Detected by CoverityScan CID#1456886 ("Unsigned compared against 0")
>
> Fixes: 1e3197d6ad73 ("drm/i915/gvt: Refine error handling for perform_bb_shadow")
> Signed-off-by: Colin Ian King <colin.king@canonical.com>
> ---
> drivers/gpu/drm/i915/gvt/cmd_parser.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/i915/gvt/cmd_parser.c b/drivers/gpu/drm/i915/gvt/cmd_parser.c
> index 2c0ccbb817dc..f41cbf664b69 100644
> --- a/drivers/gpu/drm/i915/gvt/cmd_parser.c
> +++ b/drivers/gpu/drm/i915/gvt/cmd_parser.c
> @@ -1628,7 +1628,7 @@ static int perform_bb_shadow(struct parser_exec_state *s)
> struct intel_shadow_bb_entry *entry_obj;
> struct intel_vgpu *vgpu = s->vgpu;
> unsigned long gma = 0;
> - uint32_t bb_size;
> + int bb_size;
> void *dst = NULL;
> int ret = 0;
>

Applied this, thanks!

--
Open Source Technology Center, Intel ltd.

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