]> git.proxmox.com Git - mirror_ubuntu-disco-kernel.git/commit
drm/prime: drop reference on imported dma-buf come from gem
authorSeung-Woo Kim <sw0312.kim@samsung.com>
Thu, 27 Sep 2012 06:30:06 +0000 (15:30 +0900)
committerDave Airlie <airlied@redhat.com>
Tue, 8 Jan 2013 04:41:53 +0000 (14:41 +1000)
commitbe8a42ae60addd8b6092535c11b42d099d6470ec
treef8fe5dc8c565f9ad02c7f129bf8ad091a4b0581e
parentf3215be950e40fede0dffb8534729fe0bf410727
drm/prime: drop reference on imported dma-buf come from gem

Increasing ref counts of both dma-buf and gem for imported dma-buf come from gem
makes memory leak. release function of dma-buf cannot be called because f_count
of dma-buf increased by importing gem and gem ref count cannot be decrease
because of exported dma-buf.

So I add dma_buf_put() for imported gem come from its own gem into each drivers
having prime_import and prime_export capabilities. With this, only gem ref
count is increased if importing gem exported from gem of same driver.

Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com>
Signed-off-by: Kyungmin.park <kyungmin.park@samsung.com>
Cc: Inki Dae <inki.dae@samsung.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Rob Clark <rob.clark@linaro.org>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
drivers/gpu/drm/exynos/exynos_drm_dmabuf.c
drivers/gpu/drm/i915/i915_gem_dmabuf.c
drivers/gpu/drm/nouveau/nouveau_prime.c
drivers/gpu/drm/radeon/radeon_prime.c
drivers/staging/omapdrm/omap_gem_dmabuf.c