[PATCH 5.18 0784/1095] mmc: core: quirks: Add of_node_put() when breaking out of loop

Greg Kroah-Hartman
2022-08-15T22:21:46Z

From: Liang He <windhl@126.com>

[ Upstream commit 883c1d6fa4368a63cae2d6ae2d9c91141c60e233 ]

In mmc_fixup_of_compatible_match(), we should call of_node_put()
when breaking out of for_each_child_of_node() which will increase
and decrease the refcount during one iteration.

Fixes: b360b1102670 ("mmc: core: allow to match the device tree to apply quirks")
Signed-off-by: Liang He <windhl@126.com>
Link: https://lore.kernel.org/r/20220719091051.1210806-1-windhl@126.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/mmc/core/quirks.h | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/mmc/core/quirks.h b/drivers/mmc/core/quirks.h
index f879dc63d936..be4393988086 100644
--- a/drivers/mmc/core/quirks.h
+++ b/drivers/mmc/core/quirks.h
@@ -163,8 +163,10 @@ static inline bool mmc_fixup_of_compatible_match(struct mmc_card *card,
struct device_node *np;

for_each_child_of_node(mmc_dev(card->host)->of_node, np) {
- if (of_device_is_compatible(np, compatible))
+ if (of_device_is_compatible(np, compatible)) {
+ of_node_put(np);
return true;
+ }
}

return false;
--
2.35.1