wifi: brcmfmac: fix memory leak in brcmf_get_module_param

The memory allocated for settings is not freed when brcmf_of_probe
fails. Fix that by freeing settings before returning in error path.

Fixes: 0ff0843 ("wifi: brcmfmac: Add optional lpo clock enable support")
Signed-off-by: Abdun Nihaal <abdun.nihaal@gmail.com>
Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Link: https://patch.msgid.link/20250330103425.44197-1-abdun.nihaal@gmail.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

Author: nifey

drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c

@@ -561,8 +561,10 @@ struct brcmf_mp_device *brcmf_get_module_param(struct device *dev,
 	if (!found) {
 		/* No platform data for this device, try OF and DMI data */
 		brcmf_dmi_probe(settings, chip, chiprev);
-		if (brcmf_of_probe(dev, bus_type, settings) == -EPROBE_DEFER)
+		if (brcmf_of_probe(dev, bus_type, settings) == -EPROBE_DEFER) {
+			kfree(settings);
 			return ERR_PTR(-EPROBE_DEFER);
+		}
 		brcmf_acpi_probe(dev, bus_type, settings);
 	}
 	return settings;