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mmc: sdhci-of-esdhc: Fix refcount leak in esdhc_signal_voltage_switch
[ Upstream commitb5899a3e2f
] 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:ea35645a3c
("mmc: sdhci-of-esdhc: add support for signal voltage switch") Signed-off-by: Miaoqian Lin <linmq006@gmail.com> Link: https://lore.kernel.org/r/20220523144255.10310-1-linmq006@gmail.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
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@ -671,6 +671,7 @@ static int esdhc_signal_voltage_switch(struct mmc_host *mmc,
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scfg_node = of_find_matching_node(NULL, scfg_device_ids);
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if (scfg_node)
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scfg_base = of_iomap(scfg_node, 0);
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of_node_put(scfg_node);
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if (scfg_base) {
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sdhciovselcr = SDHCIOVSELCR_TGLEN |
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SDHCIOVSELCR_VSELVAL;
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