[PATCH 1/2] dmaengine: mv_xor: fix child node refcount handling in early exit

[Javier Carrasco]

The for_each_child_of_node() loop requires explicit calls to
of_node_put() to decrement the child's refcount upon early exits (break,
goto, return).

Add the missing calls in the two early exits before the goto
instructions.

Cc: stable@xxxxxxxxxxxxxxx
Fixes: f7d12ef53ddf ("dma: mv_xor: add Device Tree binding")
Signed-off-by: Javier Carrasco <javier.carrasco.cruz@xxxxxxxxx>
---
 drivers/dma/mv_xor.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/dma/mv_xor.c b/drivers/dma/mv_xor.c
index 43efce77bb57..40b76b40bc30 100644
--- a/drivers/dma/mv_xor.c
+++ b/drivers/dma/mv_xor.c
@@ -1388,6 +1388,7 @@ static int mv_xor_probe(struct platform_device *pdev)
 			irq = irq_of_parse_and_map(np, 0);
 			if (!irq) {
 				ret = -ENODEV;
+				of_node_put(np);
 				goto err_channel_add;
 			}
 
@@ -1396,6 +1397,7 @@ static int mv_xor_probe(struct platform_device *pdev)
 			if (IS_ERR(chan)) {
 				ret = PTR_ERR(chan);
 				irq_dispose_mapping(irq);
+				of_node_put(np);
 				goto err_channel_add;
 			}
 

-- 
2.43.0