soc: fsl: dpio: cleanup the cpu array on dpaa2_io_down
The dpio_by_cpu array should not contain a reference to a freed dpaa2_io
object. This patch adds the necessary cleanup in dpaa2_io_down.
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: Li Yang <leoyang.li@nxp.com>
diff --git a/drivers/soc/fsl/dpio/dpio-service.c b/drivers/soc/fsl/dpio/dpio-service.c
index ec0837ff..ab046f2 100644
--- a/drivers/soc/fsl/dpio/dpio-service.c
+++ b/drivers/soc/fsl/dpio/dpio-service.c
@@ -160,6 +160,11 @@
*/
void dpaa2_io_down(struct dpaa2_io *d)
{
+ spin_lock(&dpio_list_lock);
+ dpio_by_cpu[d->dpio_desc.cpu] = NULL;
+ list_del(&d->node);
+ spin_unlock(&dpio_list_lock);
+
kfree(d);
}
