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(parent: da2a1aa) | patch
drm/shmem-helper: Add missing vunmap on error
authorDmitry Osipenko <dmitry.osipenko@collabora.com>
Thu, 30 Jun 2022 20:00:57 +0000 (23:00 +0300)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 17 Aug 2022 12:22:53 +0000 (14:22 +0200)
commit8589a83c0ae9d4ddd253e2ed07c0aae11894e479
treed74bd2668e7e6f1e64f875f5b8f5a4ef21ef5502tree | snapshot
parentda2a1aa058acd7eb2cccd9de74df0809cbe4f1f8commit | diff
drm/shmem-helper: Add missing vunmap on error

commit df4aaf015775221dde8a51ee09edb919981f091e upstream.

The vmapping of dma-buf may succeed, but DRM SHMEM rejects the IOMEM
mapping, and thus, drm_gem_shmem_vmap_locked() should unvmap the IOMEM
before erroring out.

Cc: stable@vger.kernel.org
Fixes: 49a3f51dfeee ("drm/gem: Use struct dma_buf_map in GEM vmap ops and convert GEM backends")
Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20220630200058.1883506-2-dmitry.osipenko@collabora.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/gpu/drm/drm_gem_shmem_helper.c diff | blob | history
Domain: System / Kernel;