[PATCH] drm/i915/selftests: fix inconsistent IS_ERR and PTR_ERR

[Gustavo A. R. Silva]

Fix inconsistent IS_ERR and PTR_ERR in shrink_boom.
The proper pointer to use is _explode_ instead of _purge_.

This issue was detected with the help of Coccinelle.

Fixes: fe215c8bc426 ("drm/i915/selftests: add missing gtt shrinker test")
Signed-off-by: Gustavo A. R. Silva <gustavo@xxxxxxxxxxxxxx>
---
 drivers/gpu/drm/i915/selftests/i915_gem_gtt.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c b/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c
index d806427..89b6ca9 100644
--- a/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c
@@ -927,7 +927,7 @@ static int shrink_boom(struct drm_i915_private *i915,
 
 		explode = fake_dma_object(i915, size);
 		if (IS_ERR(explode)) {
-			err = PTR_ERR(purge);
+			err = PTR_ERR(explode);
 			goto err_purge;
 		}
 
-- 
2.7.4