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authorJakub Kicinski <[email protected]>2024-03-29 00:24:10 +0000
committerJakub Kicinski <[email protected]>2024-03-29 00:25:57 +0000
commit5e47fbe5cefe5d25d1fa4481c1b9fbe602b4a69f (patch)
treeb86edc39098cca1d0e53e46dceec6ca856183642 /drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c
parentMerge tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf... (diff)
parentMerge tag 'net-6.9-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netd... (diff)
downloadkernel-5e47fbe5cefe5d25d1fa4481c1b9fbe602b4a69f.tar.gz
kernel-5e47fbe5cefe5d25d1fa4481c1b9fbe602b4a69f.zip
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR. No conflicts, or adjacent changes. Signed-off-by: Jakub Kicinski <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c20
1 files changed, 16 insertions, 4 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c
index 55b65fc04b65..431ec72655ec 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c
@@ -129,13 +129,25 @@ static const struct mmu_interval_notifier_ops amdgpu_hmm_hsa_ops = {
*/
int amdgpu_hmm_register(struct amdgpu_bo *bo, unsigned long addr)
{
+ int r;
+
if (bo->kfd_bo)
- return mmu_interval_notifier_insert(&bo->notifier, current->mm,
+ r = mmu_interval_notifier_insert(&bo->notifier, current->mm,
addr, amdgpu_bo_size(bo),
&amdgpu_hmm_hsa_ops);
- return mmu_interval_notifier_insert(&bo->notifier, current->mm, addr,
- amdgpu_bo_size(bo),
- &amdgpu_hmm_gfx_ops);
+ else
+ r = mmu_interval_notifier_insert(&bo->notifier, current->mm, addr,
+ amdgpu_bo_size(bo),
+ &amdgpu_hmm_gfx_ops);
+ if (r)
+ /*
+ * Make sure amdgpu_hmm_unregister() doesn't call
+ * mmu_interval_notifier_remove() when the notifier isn't properly
+ * initialized.
+ */
+ bo->notifier.mm = NULL;
+
+ return r;
}
/**