In preparation to enable -Wimplicit-fallthrough for Clang, fix a warning
by explicitly adding a return statement instead of letting the code fall
through to the next case.

Link: https://github.com/KSPP/linux/issues/115
Signed-off-by: Gustavo A. R. Silva <gustavo...@kernel.org>
---
 drivers/gpu/drm/i915/gem/i915_gem_shrinker.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/i915/gem/i915_gem_shrinker.c 
b/drivers/gpu/drm/i915/gem/i915_gem_shrinker.c
index dc8f052a0ffe..b699c1adb106 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_shrinker.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_shrinker.c
@@ -59,6 +59,7 @@ static void try_to_writeback(struct drm_i915_gem_object *obj,
        switch (obj->mm.madv) {
        case I915_MADV_DONTNEED:
                i915_gem_object_truncate(obj);
+               return;
        case __I915_MADV_PURGED:
                return;
        }
-- 
2.27.0

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