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* [PATCH] drm/vc4: Fix an error code vc4_create_object()
@ 2020-06-15 11:27 Dan Carpenter
  0 siblings, 0 replies; only message in thread
From: Dan Carpenter @ 2020-06-15 11:27 UTC (permalink / raw)
  To: Eric Anholt; +Cc: David Airlie, kernel-janitors, dri-devel

The vc4_create_object() needs to return NULL on error, not error
pointers.  If it returns an error pointer then that will lead to an
Oops in the callers.  Fortunately, in current kernels small allocations
always succed so this will never happen.

Fixes: c826a6e10644 ("drm/vc4: Add a BO cache.")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
---
 drivers/gpu/drm/vc4/vc4_bo.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/vc4/vc4_bo.c b/drivers/gpu/drm/vc4/vc4_bo.c
index 72d30d90b856c..0af246a5609ca 100644
--- a/drivers/gpu/drm/vc4/vc4_bo.c
+++ b/drivers/gpu/drm/vc4/vc4_bo.c
@@ -389,7 +389,7 @@ struct drm_gem_object *vc4_create_object(struct drm_device *dev, size_t size)
 
 	bo = kzalloc(sizeof(*bo), GFP_KERNEL);
 	if (!bo)
-		return ERR_PTR(-ENOMEM);
+		return NULL;
 
 	bo->madv = VC4_MADV_WILLNEED;
 	refcount_set(&bo->usecnt, 0);
-- 
2.26.2

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2020-06-15 11:27 [PATCH] drm/vc4: Fix an error code vc4_create_object() Dan Carpenter

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