drm/msm: Fix VM_BIND UNMAP locking

[ Upstream commit 85042c2 ]

Wrong argument meant that the objs involved in UNMAP ops were not always
getting locked.

Since _NO_SHARE objs share a common resv with the VM (which is always
locked) this would only show up with non-_NO_SHARE BOs.

Reported-by: Victoria Brekenfeld <victoria@system76.com>
Fixes: 2e6a8a1 ("drm/msm: Add VM_BIND ioctl")
Closes: https://gitlab.freedesktop.org/drm/msm/-/issues/94
Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com>
Patchwork: https://patchwork.freedesktop.org/patch/713898/
Message-ID: <20260324220519.1221471-2-robin.clark@oss.qualcomm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

Author: Rob Clark

drivers/gpu/drm/msm/msm_gem_vma.c

@@ -1232,7 +1232,7 @@ vm_bind_job_lock_objects(struct msm_vm_bind_job *job, struct drm_exec *exec)
 			case MSM_VM_BIND_OP_UNMAP:
 				ret = drm_gpuvm_sm_unmap_exec_lock(job->vm, exec,
 							      op->iova,
-							      op->obj_offset);
+							      op->range);
 				break;
 			case MSM_VM_BIND_OP_MAP:
 			case MSM_VM_BIND_OP_MAP_NULL: {