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authorPhilip Yang <Philip.Yang@amd.com>2021-11-26 12:42:50 -0500
committerAlex Deucher <alexander.deucher@amd.com>2021-12-01 17:07:33 -0500
commitfc2c456ea8329053685db179d30e3ff0c91e5066 (patch)
tree73d5d46674c36b0f20b732b024ad2b1d8126cb6f /drivers/gpu/drm/amd
parentc9beecc5c9626ab772160ab3f8e209abc09fa54d (diff)
drm/amdkfd: set "r = 0" explicitly before goto
To silence the following Smatch static checker warning: drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_svm.c:2615 svm_range_restore_pages() warn: missing error code here? 'get_task_mm()' failed. 'r' = '0' Signed-off-by: Philip Yang <Philip.Yang@amd.com> Suggested-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd')
-rw-r--r--drivers/gpu/drm/amd/amdkfd/kfd_svm.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_svm.c b/drivers/gpu/drm/amd/amdkfd/kfd_svm.c
index 58b89b53ebe6..dd4715cb7d42 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_svm.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_svm.c
@@ -2614,6 +2614,7 @@ svm_range_restore_pages(struct amdgpu_device *adev, unsigned int pasid,
if (atomic_read(&svms->drain_pagefaults)) {
pr_debug("draining retry fault, drop fault 0x%llx\n", addr);
+ r = 0;
goto out;
}
@@ -2623,6 +2624,7 @@ svm_range_restore_pages(struct amdgpu_device *adev, unsigned int pasid,
mm = get_task_mm(p->lead_thread);
if (!mm) {
pr_debug("svms 0x%p failed to get mm\n", svms);
+ r = 0;
goto out;
}
@@ -2660,6 +2662,7 @@ retry_write_locked:
if (svm_range_skip_recover(prange)) {
amdgpu_gmc_filter_faults_remove(adev, addr, pasid);
+ r = 0;
goto out_unlock_range;
}
@@ -2668,6 +2671,7 @@ retry_write_locked:
if (timestamp < AMDGPU_SVM_RANGE_RETRY_FAULT_PENDING) {
pr_debug("svms 0x%p [0x%lx %lx] already restored\n",
svms, prange->start, prange->last);
+ r = 0;
goto out_unlock_range;
}