cxl: Destroy afu->contexts_idr on release of an afu

Destroy afu->contexts_idr on release of an afu, reclaiming the allocated
memory.

Signed-off-by: Johannes Thumshirn <[e-mail]>
Acked-by: Ian Munsie <[e-mail]>
Signed-off-by: Michael Ellerman <[e-mail]>

drivers/misc/cxl/pci.c

···
 
 	pr_devel("cxl_release_afu\n");
 
+	idr_destroy(&afu->contexts_idr);
 	kfree(afu);
 }