From: Miaoqian Lin <linmq006@xxxxxxxxx>
[ Upstream commit b5899a3e2f783a27b268e38d37f9b24c71bddf45 ]
of_find_matching_node() returns a node pointer with refcount
incremented, we should use of_node_put() on it when not need anymore.
Add missing of_node_put() to avoid refcount leak.
of_node_put() checks null pointer.
Fixes: ea35645a3c66 ("mmc: sdhci-of-esdhc: add support for signal voltage switch")
Signed-off-by: Miaoqian Lin <linmq006@xxxxxxxxx>
Link: https://lore.kernel.org/r/20220523144255.10310-1-linmq006@xxxxxxxxx
Signed-off-by: Ulf Hansson <ulf.hansson@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/mmc/host/sdhci-of-esdhc.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/mmc/host/sdhci-of-esdhc.c b/drivers/mmc/host/sdhci-of-esdhc.c
index 343648fcbc31..d53374991e13 100644
--- a/drivers/mmc/host/sdhci-of-esdhc.c
+++ b/drivers/mmc/host/sdhci-of-esdhc.c
@@ -904,6 +904,7 @@ static int esdhc_signal_voltage_switch(struct mmc_host *mmc,
scfg_node = of_find_matching_node(NULL, scfg_device_ids);
if (scfg_node)
scfg_base = of_iomap(scfg_node, 0);
+ of_node_put(scfg_node);
if (scfg_base) {
sdhciovselcr = SDHCIOVSELCR_TGLEN |
SDHCIOVSELCR_VSELVAL;
--
2.35.1
