brcmfmac: initialize struct brcmf_fws_info fields before iovar

If iovar to the firmware fails the firmware-signalling module
does a cleanup for which it needs pointer to struct brcmf_pub, which
it gets from struct brcmf_fws_info::drvr. Assign this field before
doing the tlv iovar.
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Piotr Haber <phaber@broadcom.com>
Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c

@@ -919,6 +919,10 @@ int brcmf_fws_init(struct brcmf_pub *drvr)
 		goto fail;
 	}
 
+	/* set linkage back */
+	drvr->fws->drvr = drvr;
+	drvr->fws->fcmode = fcmode;
+
 	/* enable proptxtstatus signaling by default */
 	rc = brcmf_fil_iovar_int_set(drvr->iflist[0], "tlv", tlv);
 	if (rc < 0) {
@@ -937,10 +941,6 @@ int brcmf_fws_init(struct brcmf_pub *drvr)
 	/* create debugfs file for statistics */
 	brcmf_debugfs_create_fws_stats(drvr, &drvr->fws->stats);
 
-	/* set linkage back */
-	drvr->fws->drvr = drvr;
-	drvr->fws->fcmode = fcmode;
-
 	/* TODO: remove upon feature delivery */
 	brcmf_err("%s bdcv2 tlv signaling [%x]\n",
 		  drvr->fw_signals ? "enabled" : "disabled", tlv);