From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Sat, 7 Dec 2013 16:28:39 +0000 (+0000)
Subject: DRM: Armada: prime refcounting bug fix
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=5cd5268806435b6476184430b2806db988c903f0;p=linux-beck.git

DRM: Armada: prime refcounting bug fix

Commit 011c2282c74d changed the way refcounting on imported dma_bufs
works, and this hadn't been spotted while forward-porting Armada.
Reflect the changes in that commit into the Armada driver.

Reviewed-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---

diff --git a/drivers/gpu/drm/armada/armada_gem.c b/drivers/gpu/drm/armada/armada_gem.c
index adc7c2da75bb..887816f43476 100644
--- a/drivers/gpu/drm/armada/armada_gem.c
+++ b/drivers/gpu/drm/armada/armada_gem.c
@@ -558,7 +558,6 @@ armada_gem_prime_import(struct drm_device *dev, struct dma_buf *buf)
 			 * refcount on the gem object itself.
 			 */
 			drm_gem_object_reference(obj);
-			dma_buf_put(buf);
 			return obj;
 		}
 	}
@@ -574,6 +573,7 @@ armada_gem_prime_import(struct drm_device *dev, struct dma_buf *buf)
 	}
 
 	dobj->obj.import_attach = attach;
+	get_dma_buf(buf);
 
 	/*
 	 * Don't call dma_buf_map_attachment() here - it maps the