mmc: sdhci-of-esdhc: Fixup use of of_find_compatible_node()

Callers of of_find_compatible_node() should drop the reference count
accordingly, so let's do that.
Signed-off-by: Liang He <windhl@126.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Link: https://lore.kernel.org/r/20220621065259.4079817-1-windhl@126.comSigned-off-by: Ulf Hansson <ulf.hansson@linaro.org>

drivers/mmc/host/sdhci-of-esdhc.c

@@ -1419,7 +1419,7 @@ static int esdhc_hs400_prepare_ddr(struct mmc_host *mmc)
 static int sdhci_esdhc_probe(struct platform_device *pdev)
 {
 	struct sdhci_host *host;
-	struct device_node *np;
+	struct device_node *np, *tp;
 	struct sdhci_pltfm_host *pltfm_host;
 	struct sdhci_esdhc *esdhc;
 	int ret;
@@ -1464,7 +1464,9 @@ static int sdhci_esdhc_probe(struct platform_device *pdev)
 	if (esdhc->vendor_ver > VENDOR_V_22)
 		host->quirks &= ~SDHCI_QUIRK_NO_BUSY_IRQ;
 
-	if (of_find_compatible_node(NULL, NULL, "fsl,p2020-esdhc")) {
+	tp = of_find_compatible_node(NULL, NULL, "fsl,p2020-esdhc");
+	if (tp) {
+		of_node_put(tp);
 		host->quirks |= SDHCI_QUIRK_RESET_AFTER_REQUEST;
 		host->quirks |= SDHCI_QUIRK_BROKEN_TIMEOUT_VAL;
 	}