drm/i915: Do not return -1 from shrinker when nr_to_scan == 0

The error code is only expected during the actual pruning and not during
the first measurement (nr_to_scan == 0) pass.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index d4d8f888db856522d8fbac0ddf683c0c412bd3f3..7569b77fb4030eeca006341a89fad1984a4271eb 100644 (file)
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -4994,7 +4994,7 @@ i915_gem_inactive_shrink(struct shrinker *shrinker,
        int cnt;
 
        if (!mutex_trylock(&dev->struct_mutex))
-               return nr_to_scan ? 0 : -1;
+               return 0;
 
        /* "fast-path" to count number of available objects */
        if (nr_to_scan == 0) {