[PATCH] drm: i915_gem_inactive_scan: insufficient nr_to_scan size

[Artem Savkov]

nr_to_scan needs to be (unsigned) long, not int, otherwise we get negative
values on 32bit systems during shrink resulting in lots of messages like one
below.

[ 4078.989603] shrink_slab: i915_gem_inactive_scan+0x0/0xc0 negative objects to 
delete nr=-289580136

Introduced in "drivers: convert shrinkers to new count/scan API"
(383e4f4a4cdeb2dd552e90811089bcb4d41eb32e in linux-next.git)

Signed-off-by: Artem Savkov <artem.savkov at gmail.com>
---
 drivers/gpu/drm/i915/i915_gem.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 4635354..b3b4891b 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -4649,7 +4649,7 @@ i915_gem_inactive_scan(struct shrinker *shrinker, struct 
shrink_control *sc)
                             struct drm_i915_private,
                             mm.inactive_shrinker);
        struct drm_device *dev = dev_priv->dev;
-       int nr_to_scan = sc->nr_to_scan;
+       unsigned long nr_to_scan = sc->nr_to_scan;
        unsigned long freed;
        bool unlock = true;

-- 
1.8.3.3