brcmfmac: reset suspend flag upon sdio suspend failure

The suspend callback first sets the suspend flag used in the driver
but after that the actual suspend is done, which may fail. Reset the
flag upon suspend failure.

Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Daniel (Deognyoun) Kim <dekim@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/bcmsdh.c

@@ -1101,9 +1101,7 @@ static int brcmf_ops_sdio_suspend(struct device *dev)
 	struct brcmf_sdio_dev *sdiodev = bus_if->bus_priv.sdio;
 	int ret = 0;
 
-	brcmf_dbg(SDIO, "\n");
-
-	atomic_set(&sdiodev->suspend, true);
+	brcmf_dbg(SDIO, "Enter\n");
 
 	sdio_flags = sdio_get_host_pm_caps(sdiodev->func[1]);
 	if (!(sdio_flags & MMC_PM_KEEP_POWER)) {
@@ -1111,9 +1109,12 @@ static int brcmf_ops_sdio_suspend(struct device *dev)
 		return -EINVAL;
 	}
 
+	atomic_set(&sdiodev->suspend, true);
+
 	ret = sdio_set_host_pm_flags(sdiodev->func[1], MMC_PM_KEEP_POWER);
 	if (ret) {
 		brcmf_err("Failed to set pm_flags\n");
+		atomic_set(&sdiodev->suspend, false);
 		return ret;
 	}
 
@@ -1127,6 +1128,7 @@ static int brcmf_ops_sdio_resume(struct device *dev)
 	struct brcmf_bus *bus_if = dev_get_drvdata(dev);
 	struct brcmf_sdio_dev *sdiodev = bus_if->bus_priv.sdio;
 
+	brcmf_dbg(SDIO, "Enter\n");
 	brcmf_sdio_wd_timer(sdiodev->bus, BRCMF_WD_POLL_MS);
 	atomic_set(&sdiodev->suspend, false);
 	return 0;