OrangePi_CM5/drivers/gpu/drm/virtio
liuyuntao 38098444b7 virtio-gpu: fix possible memory allocation failure
[ Upstream commit 5bd4f20de8acad37dbb3154feb34dbc36d506c02 ]

When kmem_cache_zalloc in virtio_gpu_get_vbuf fails, it will return
an error code. But none of its callers checks this error code, and
a core dump will take place.

Considering many of its callers can't handle such error, I add
a __GFP_NOFAIL flag when calling kmem_cache_zalloc to make sure
it won't fail, and delete those unused error handlings.

Fixes: dc5698e80c ("Add virtio gpu driver.")
Signed-off-by: Yuntao Liu <liuyuntao10@huawei.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20210828104321.3410312-1-liuyuntao10@huawei.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-11-18 14:04:02 +01:00
..
Kconfig
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Makefile
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virtgpu_debugfs.c
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virtgpu_display.c
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virtgpu_drv.c
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virtgpu_drv.h
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virtgpu_fence.c
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virtgpu_gem.c
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virtgpu_ioctl.c
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virtgpu_kms.c drm/virtio: Fix double free on probe failure 2021-07-19 09:44:39 +02:00
virtgpu_object.c
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virtgpu_plane.c
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virtgpu_prime.c
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virtgpu_trace.h
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virtgpu_trace_points.c
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virtgpu_vq.c virtio-gpu: fix possible memory allocation failure 2021-11-18 14:04:02 +01:00