staging: rtl8712: Invert if statements to reduce indentation level

Invert if statements to be able to return immediately in case of error,
and to avoid additional else branch, and then continue with the rest
of the function without excessive indentation.

This was found using the following Coccinelle script:

@disable neg_if@
expression e,E;
statement S;
@@

*if (e)
S
else { return -E; }

@disable neg_if@
expression e,E;
statement S;
identifier l;
@@

*if (e)
S
else { rc = -E; goto l;  }

Signed-off-by: Narcisa Ana Maria Vasile <narcisaanamaria12@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/rtl8712/rtl871x_ioctl_linux.c b/drivers/staging/rtl8712/rtl871x_ioctl_linux.c
index 0322795..60c97f7 100644 (file)
--- a/drivers/staging/rtl8712/rtl871x_ioctl_linux.c
+++ b/drivers/staging/rtl8712/rtl871x_ioctl_linux.c
@@ -378,13 +378,12 @@ static int wpa_set_encryption(struct net_device *dev, struct ieee_param *param,
        if (param_len != (u32)((u8 *) param->u.crypt.key - (u8 *)param) +
                         param->u.crypt.key_len)
                return -EINVAL;
-       if (is_broadcast_ether_addr(param->sta_addr)) {
-               if (param->u.crypt.idx >= WEP_KEYS) {
-                       /* for large key indices, set the default (0) */
-                       param->u.crypt.idx = 0;
-               }
-       } else {
+       if (!is_broadcast_ether_addr(param->sta_addr))
                return -EINVAL;
+
+       if (param->u.crypt.idx >= WEP_KEYS) {
+               /* for large key indices, set the default (0) */
+               param->u.crypt.idx = 0;
        }
        if (strcmp(param->u.crypt.alg, "WEP") == 0) {
                netdev_info(dev, "r8712u: %s: crypt.alg = WEP\n", __func__);
@@ -396,23 +395,19 @@ static int wpa_set_encryption(struct net_device *dev, struct ieee_param *param,
                wep_key_len = param->u.crypt.key_len;
                if (wep_key_idx >= WEP_KEYS)
                        wep_key_idx = 0;
-               if (wep_key_len > 0) {
-                       wep_key_len = wep_key_len <= 5 ? 5 : 13;
-                       pwep = kzalloc(sizeof(*pwep), GFP_ATOMIC);
-                       if (!pwep)
-                               return -ENOMEM;
-                       pwep->KeyLength = wep_key_len;
-                       pwep->Length = wep_key_len +
-                                FIELD_OFFSET(struct NDIS_802_11_WEP,
-                                KeyMaterial);
-                       if (wep_key_len == 13) {
-                               padapter->securitypriv.PrivacyAlgrthm =
-                                        _WEP104_;
-                               padapter->securitypriv.XGrpPrivacy =
-                                        _WEP104_;
-                       }
-               } else {
+               if (wep_key_len <= 0)
                        return -EINVAL;
+
+               wep_key_len = wep_key_len <= 5 ? 5 : 13;
+               pwep = kzalloc(sizeof(*pwep), GFP_ATOMIC);
+               if (!pwep)
+                       return -ENOMEM;
+               pwep->KeyLength = wep_key_len;
+               pwep->Length = wep_key_len +
+                       FIELD_OFFSET(struct NDIS_802_11_WEP, KeyMaterial);
+               if (wep_key_len == 13) {
+                       padapter->securitypriv.PrivacyAlgrthm = _WEP104_;
+                       padapter->securitypriv.XGrpPrivacy = _WEP104_;
                }
                pwep->KeyIndex = wep_key_idx;
                pwep->KeyIndex |= 0x80000000;