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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>
This commit is contained in:
Ioana Ciornei 2018-12-04 11:20:27 +00:00 committed by Li Yang
parent bfeffd1552
commit e181a569d8
1 changed files with 5 additions and 0 deletions
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5
drivers/soc/fsl/dpio/dpio-service.c
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@ -160,6 +160,11 @@ struct dpaa2_io *dpaa2_io_create(const struct dpaa2_io_desc *desc)
*/
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);
}