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authorJavier Carrasco <javier.carrasco.cruz@gmail.com>2024-10-11 22:57:59 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2025-01-02 10:32:02 +0100
commit7f92f287b0fafee347adcee5f89077925c115535 (patch)
tree89b47f152412094ecb358ee08087eb7f5daa5f73
parent908806a2e789998f8897ebab83be10b4b058b6e2 (diff)
dmaengine: mv_xor: fix child node refcount handling in early exit
commit 362f1bf98a3ecb5a2a4fcbdaa9718c8403beceb2 upstream. 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@vger.kernel.org Fixes: f7d12ef53ddf ("dma: mv_xor: add Device Tree binding") Signed-off-by: Javier Carrasco <javier.carrasco.cruz@gmail.com> Link: https://lore.kernel.org/r/20241011-dma_mv_xor_of_node_put-v1-1-3c2de819f463@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/dma/mv_xor.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/dma/mv_xor.c b/drivers/dma/mv_xor.c
index 23b232b57518..ea48661e87ea 100644
--- a/drivers/dma/mv_xor.c
+++ b/drivers/dma/mv_xor.c
@@ -1393,6 +1393,7 @@ 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;
}
@@ -1401,6 +1402,7 @@ 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;
}