dmaengine: idxd: Add missing idxd cleanup to fix memory leak in remove call

commit d5449ff1b04dfe9ed8e455769aa01e4c2ccf6805 upstream.

The remove call stack is missing idxd cleanup to free bitmap, ida and
the idxd_device. Call idxd_free() helper routines to make sure we exit
gracefully.

Fixes: bfe1d56 ("dmaengine: idxd: Init and probe for Intel data accelerators")
Cc: [email protected]
Suggested-by: Vinicius Costa Gomes <[email protected]>
Signed-off-by: Shuai Xue <[email protected]>
Reviewed-by: Fenghua Yu <[email protected]>
Reviewed-by: Dave Jiang <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Vinod Koul <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

Author: axiqia

drivers/dma/idxd/init.c

@@ -796,6 +796,7 @@ static void idxd_remove(struct pci_dev *pdev)
 	destroy_workqueue(idxd->wq);
 	perfmon_pmu_remove(idxd);
 	put_device(idxd_confdev(idxd));
+	idxd_free(idxd);
 }
 
 static struct pci_driver idxd_pci_driver = {