drm/amdgpu: fix uninitialized variable pasid_mapping_needed

The boolean variable pasid_mapping_needed is not initialized and
there are code paths that do not assign it any value before it is
is read later.  Fix this by initializing pasid_mapping_needed to
false.

Addresses-Coverity: ("Uninitialized scalar variable")
Fixes: 6817bf283b2b ("drm/amdgpu: grab the id mgr lock while accessing passid_mapping")
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index a2c797e34a298bd3e856cd49d209679f2c98cf99..be10e4b9a94d4a98c7fe05e9d91039699d2069cb 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -1055,7 +1055,7 @@ int amdgpu_vm_flush(struct amdgpu_ring *ring, struct amdgpu_job *job,
                id->oa_size != job->oa_size);
        bool vm_flush_needed = job->vm_needs_flush;
        struct dma_fence *fence = NULL;
-       bool pasid_mapping_needed;
+       bool pasid_mapping_needed = false;
        unsigned patch_offset = 0;
        int r;