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dpaa2-ptp: Fix refcount leak in dpaa2_ptp_probe

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[ Upstream commit 2b04bd4f03 ]

This node pointer is returned by of_find_compatible_node() with
refcount incremented. Calling of_node_put() to aovid the refcount leak.

Fixes: d346c9e86d ("dpaa2-ptp: reuse ptp_qoriq driver")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Link: https://lore.kernel.org/r/20220404125336.13427-1-linmq006@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Miaoqian Lin 2022-04-04 12:53:36 +00:00 committed by Greg Kroah-Hartman
parent 43c2d7890e
commit ebd1e3458d
1 changed files with 3 additions and 1 deletions
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4
drivers/net/ethernet/freescale/dpaa2/dpaa2-ptp.c
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@ -168,7 +168,7 @@ static int dpaa2_ptp_probe(struct fsl_mc_device *mc_dev)
base = of_iomap(node, 0); base = of_iomap(node, 0);
if (!base) { if (!base) {
err = -ENOMEM; err = -ENOMEM;
goto err_close; goto err_put;
} }
err = fsl_mc_allocate_irqs(mc_dev); err = fsl_mc_allocate_irqs(mc_dev);
@ -212,6 +212,8 @@ static int dpaa2_ptp_probe(struct fsl_mc_device *mc_dev)
fsl_mc_free_irqs(mc_dev); fsl_mc_free_irqs(mc_dev);
err_unmap: err_unmap:
iounmap(base); iounmap(base);
err_put:
of_node_put(node);
err_close: err_close:
dprtc_close(mc_dev->mc_io, 0, mc_dev->mc_handle); dprtc_close(mc_dev->mc_io, 0, mc_dev->mc_handle);
err_free_mcp: err_free_mcp: