i915: signedness bug in check_overlay_src()

"depth" should be signed in case packed_depth_bytes() returns -EINVAL.

This probably doesn't make a difference at runtime.  In the original
code we would return -EINVAL later if (rec->offset_Y % 4294967274) is
non-zero.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

diff --git a/drivers/gpu/drm/i915/intel_overlay.c b/drivers/gpu/drm/i915/intel_overlay.c
index afb96d25219afe473b116802f30616c0edb1cf86..02ff0a481f470cea6e3f4f109805e07fbd84725e 100644 (file)
--- a/drivers/gpu/drm/i915/intel_overlay.c
+++ b/drivers/gpu/drm/i915/intel_overlay.c
@@ -946,7 +946,9 @@ static int check_overlay_src(struct drm_device *dev,
 {
        int uv_hscale = uv_hsubsampling(rec->flags);
        int uv_vscale = uv_vsubsampling(rec->flags);
-       u32 stride_mask, depth, tmp;
+       u32 stride_mask;
+       int depth;
+       u32 tmp;
 
        /* check src dimensions */
        if (IS_845G(dev) || IS_I830(dev)) {