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drm/msm: fix error path cleanup 

If we fail to attach iommu, gpu->aspace could be IS_ERR()..

Signed-off-by: Rob Clark <robdclark@gmail.com>
This commit is contained in:
Rob Clark 2017-08-24 14:24:29 -04:00
parent 9e4621531e
commit 6bd6ae2dfc
1 changed files with 2 additions and 1 deletions
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3
drivers/gpu/drm/msm/msm_gpu.c
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@ -718,7 +718,8 @@ void msm_gpu_cleanup(struct msm_gpu *gpu)
msm_gem_put_iova(gpu->rb->bo, gpu->aspace);
msm_ringbuffer_destroy(gpu->rb);
}
if (gpu->aspace) {
if (!IS_ERR_OR_NULL(gpu->aspace)) {
gpu->aspace->mmu->funcs->detach(gpu->aspace->mmu,
NULL, 0);
msm_gem_address_space_put(gpu->aspace);