[PATCH] mmc: mmci: Fix device_node reference leak in of_get_dml_pipe_index()

From: Felix Gu

Date: Tue Jan 20 2026 - 09:26:57 EST


When calling of_parse_phandle_with_args(), the caller is responsible
to call of_node_put() to release the reference of device node.
In of_get_dml_pipe_index(), it does not release the reference.

Fixes: 9cb15142d0e3 ("mmc: mmci: Add qcom dml support to the driver.")
Signed-off-by: Felix Gu <gu_0233@xxxxxx>
---
drivers/mmc/host/mmci_qcom_dml.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/mmc/host/mmci_qcom_dml.c b/drivers/mmc/host/mmci_qcom_dml.c
index 3da6112fbe39..67371389cc33 100644
--- a/drivers/mmc/host/mmci_qcom_dml.c
+++ b/drivers/mmc/host/mmci_qcom_dml.c
@@ -109,6 +109,7 @@ static int of_get_dml_pipe_index(struct device_node *np, const char *name)
&dma_spec))
return -ENODEV;

+ of_node_put(dma_spec.np);
if (dma_spec.args_count)
return dma_spec.args[0];


---
base-commit: 9b7977f9e39b7768c70c2aa497f04e7569fd3e00
change-id: 20260117-mmci_qcom_dml-e169407da7bf

Best regards,
--
Felix Gu <gu_0233@xxxxxx>