static s32 brcmf_dongle_roam(struct brcmf_if *ifp)
{
	s32 err;
	u32 bcn_timeout;
	__le32 roamtrigger[2];
	__le32 roam_delta[2];

	/* Configure beacon timeout value based upon roaming setting */
	if (ifp->drvr->settings->roamoff)
		bcn_timeout = BRCMF_DEFAULT_BCN_TIMEOUT_ROAM_OFF;
	else
		bcn_timeout = BRCMF_DEFAULT_BCN_TIMEOUT_ROAM_ON;
	err = brcmf_fil_iovar_int_set(ifp, "bcn_timeout", bcn_timeout);
	if (err) {
		brcmf_err("bcn_timeout error (%d)\n", err);
		goto roam_setup_done;
	}

	/* Enable/Disable built-in roaming to allow supplicant to take care of
	 * roaming.
	 */
	brcmf_dbg(INFO, "Internal Roaming = %s\n",
		  ifp->drvr->settings->roamoff ? "Off" : "On");
	err = brcmf_fil_iovar_int_set(ifp, "roam_off",
				      ifp->drvr->settings->roamoff);
	if (err) {
		brcmf_err("roam_off error (%d)\n", err);
		goto roam_setup_done;
	}

	roamtrigger[0] = cpu_to_le32(WL_ROAM_TRIGGER_LEVEL);
	roamtrigger[1] = cpu_to_le32(BRCM_BAND_ALL);
	err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_ROAM_TRIGGER,
				     (void *)roamtrigger, sizeof(roamtrigger));
	if (err) {
		brcmf_err("WLC_SET_ROAM_TRIGGER error (%d)\n", err);
		goto roam_setup_done;
	}

	roam_delta[0] = cpu_to_le32(WL_ROAM_DELTA);
	roam_delta[1] = cpu_to_le32(BRCM_BAND_ALL);
	err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_ROAM_DELTA,
				     (void *)roam_delta, sizeof(roam_delta));
	if (err) {
		brcmf_err("WLC_SET_ROAM_DELTA error (%d)\n", err);
		goto roam_setup_done;
	}

roam_setup_done:
	return err;
}

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.