staging/ks7010: Fix coding style problems

Sorry to bother you with this low-effort patch but I'd really like to get
my feet in the water and this whole process is making me nervous. I'd
really appreciate you taking the time to look over this diff and
hopefully I did not screw up to badly.

Signed-off-by: Leon Krieg <info@madcow.dev>

drivers/staging/ks7010/Kconfig

@@ -6,6 +6,7 @@ config KS7010
 	select WEXT_PRIV
 	select FW_LOADER
 	help
-	  This is a driver for KeyStream KS7010 based SDIO WIFI cards. It is
-	  found on at least later Spectec SDW-821 (FCC-ID "S2Y-WLAN-11G-K" only,
-	  sadly not FCC-ID "S2Y-WLAN-11B-G") and Spectec SDW-823 microSD cards.
+	  Selecting this option enables the driver for KeyStream KS7010 SDIO
+	  hardware found in at least Spectec SDW-821 and SDW-823 microSD cards
+         (FCC-ID "S2Y-WLAN-11G-K" but not FCC-ID "S2Y-WLAN-11B-G" and Spectec
+	  SDW-823).

drivers/staging/ks7010/ks_hostif.c

@@ -134,7 +134,7 @@ int get_current_ap(struct ks_wlan_private *priv, struct link_ap_info *ap_info)
 	size = (ap_info->rsn.size <= RSN_IE_BODY_MAX) ?
 		ap_info->rsn.size : RSN_IE_BODY_MAX;
 	if ((ap_info->rsn_mode & RSN_MODE_WPA2) &&
-	    (priv->wpa.version == IW_AUTH_WPA_VERSION_WPA2)) {
+	    priv->wpa.version == IW_AUTH_WPA_VERSION_WPA2) {
 		ap->rsn_ie.id = RSN_INFO_ELEM_ID;
 		ap->rsn_ie.size = size;
 		memcpy(ap->rsn_ie.body, ap_info->rsn.body, size);

drivers/staging/ks7010/ks_wlan_net.c

@@ -181,26 +181,26 @@ static int ks_wlan_set_freq(struct net_device *dev,
 
 	/* for SLEEP MODE */
 	/* If setting by frequency, convert to a channel */
-	if ((fwrq->freq.e == 1) &&
-	    (fwrq->freq.m >= 241200000) && (fwrq->freq.m <= 248700000)) {
+	if (fwrq->freq.e == 1 &&
+	    fwrq->freq.m >= 241200000 && fwrq->freq.m <= 248700000) {
 		int f = fwrq->freq.m / 100000;
 		int c = 0;
 
 		while ((c < 14) && (f != frequency_list[c]))
 			c++;
-		/* Hack to fall through... */
+		fallthrough;
 		fwrq->freq.e = 0;
 		fwrq->freq.m = c + 1;
 	}
 	/* Setting by channel number */
-	if ((fwrq->freq.m > 1000) || (fwrq->freq.e > 0))
+	if (fwrq->freq.m > 1000 || fwrq->freq.e > 0)
 		return -EOPNOTSUPP;
 
 	channel = fwrq->freq.m;
 	/* We should do a better check than that,
 	 * based on the card capability !!!
 	 */
-	if ((channel < 1) || (channel > 14)) {
+	if (channel < 1 || channel > 14) {
 		netdev_dbg(dev, "%s: New channel value of %d is invalid!\n",
 			   dev->name, fwrq->freq.m);
 		return -EINVAL;
@@ -664,7 +664,7 @@ static int ks_wlan_set_rts(struct net_device *dev, struct iw_request_info *info,
 	/* for SLEEP MODE */
 	if (vwrq->rts.disabled)
 		rthr = 2347;
-	if ((rthr < 0) || (rthr > 2347))
+	if (rthr < 0 || rthr > 2347)
 		return -EINVAL;
 
 	priv->reg.rts = rthr;
@@ -702,7 +702,7 @@ static int ks_wlan_set_frag(struct net_device *dev,
 	/* for SLEEP MODE */
 	if (vwrq->frag.disabled)
 		fthr = 2346;
-	if ((fthr < 256) || (fthr > 2346))
+	if (fthr < 256 || fthr > 2346)
 		return -EINVAL;
 
 	fthr &= ~0x1;	/* Get an even value - is it really needed ??? */
@@ -781,7 +781,7 @@ static int ks_wlan_set_encode(struct net_device *dev,
 		return -EINVAL;
 
 	/* for SLEEP MODE */
-	if ((index < 0) || (index > 4))
+	if (index < 0 || index > 4)
 		return -EINVAL;
 
 	index = (index == 0) ? priv->reg.wep_index : (index - 1);
@@ -882,7 +882,7 @@ static int ks_wlan_get_encode(struct net_device *dev,
 	}
 
 	/* Which key do we want ? -1 -> tx index */
-	if ((index < 0) || (index >= 4))
+	if (index < 0 || index >= 4)
 		index = priv->reg.wep_index;
 	if (priv->reg.privacy_invoked) {
 		enc->flags &= ~IW_ENCODE_DISABLED;
@@ -1860,7 +1860,7 @@ static int ks_wlan_set_power_mgmt(struct net_device *dev,
 		return -EINVAL;
 
 	if ((*uwrq == POWER_MGMT_SAVE1 || *uwrq == POWER_MGMT_SAVE2) &&
-	    (priv->reg.operation_mode != MODE_INFRASTRUCTURE))
+	    priv->reg.operation_mode != MODE_INFRASTRUCTURE)
 		return -EINVAL;
 
 	priv->reg.power_mgmt = *uwrq;