RDMA/umem: fix missing automated rename

This occasions was missed during the recent rename of the function.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210607070658.11586-1-christian.koenig@amd.com

drivers/infiniband/core/umem_dmabuf.c

@@ -66,7 +66,7 @@ wait_fence:
 	 * may be not up-to-date. Wait for the exporter to finish
 	 * the migration.
 	 */
-	fence = dma_resv_get_excl(umem_dmabuf->attach->dmabuf->resv);
+	fence = dma_resv_excl_fence(umem_dmabuf->attach->dmabuf->resv);
 	if (fence)
 		return dma_fence_wait(fence, false);