[patch] brcm80211: fmac: fix a couple checking after dereference bugs

[Dan Carpenter <dan.carpenter@oracle.com>]

There were two dereferencing before checking for NULL static checker
complaints in this new file.  The list cursor is never NULL so that
check can be removed.  I moved the other dereference after the check.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/usb.c b/drivers/net/wireless/brcm80211/brcmfmac/usb.c
index 934ed78..7c54d1d 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/usb.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/usb.c
@@ -482,7 +482,7 @@ static void brcmf_usb_free_q(struct list_head *q, bool pending)
 	struct brcmf_usbreq *req, *next;
 	int i = 0;
 	list_for_each_entry_safe(req, next, q, list) {
-		if (!req || !req->urb) {
+		if (!req->urb) {
 			brcmf_dbg(ERROR, "bad req\n");
 			break;
 		}
@@ -712,12 +712,12 @@ static int brcmf_usb_up(struct device *dev)
 	struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(dev);
 	u16 ifnum;
 
-	if (devinfo->bus_pub.state == BCMFMAC_USB_STATE_UP)
-		return 0;
-
 	if (devinfo == NULL)
 		return -EINVAL;
 
+	if (devinfo->bus_pub.state == BCMFMAC_USB_STATE_UP)
+		return 0;
+
 	/* If the USB/HSIC bus in sleep state, wake it up */
 	if (devinfo->suspend_state == USBOS_SUSPEND_STATE_SUSPENDED) {
 		if (brcmf_usb_pnp(devinfo, BCMFMAC_USB_PNP_RESUME) != 0) {