staging:r8192u: replace request_module with try_then_request_module

Return value of request_module() does not handled,
so it is possible to use shorter try_then_request_module().

Signed-off-by: Ivan Safonov <insafonov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c b/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c
index fe6f38b..4e79083 100644 (file)
--- a/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c
+++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c
@@ -2948,8 +2948,9 @@ static int ieee80211_wpa_set_encryption(struct ieee80211_device *ieee,
                                  struct ieee_param *param, int param_len)
 {
        int ret = 0;
+       const char *module = NULL;
 
-       struct ieee80211_crypto_ops *ops;
+       struct ieee80211_crypto_ops *ops = NULL;
        struct ieee80211_crypt_data **crypt;
 
        struct ieee80211_security sec = {
@@ -2995,19 +2996,17 @@ static int ieee80211_wpa_set_encryption(struct ieee80211_device *ieee,
            strcmp(param->u.crypt.alg, "TKIP"))
                goto skip_host_crypt;
 
-       ops = ieee80211_get_crypto_ops(param->u.crypt.alg);
-       if (ops == NULL && strcmp(param->u.crypt.alg, "WEP") == 0) {
-               request_module("ieee80211_crypt_wep");
-               ops = ieee80211_get_crypto_ops(param->u.crypt.alg);
-               //set WEP40 first, it will be modified according to WEP104 or WEP40 at other place
-       } else if (ops == NULL && strcmp(param->u.crypt.alg, "TKIP") == 0) {
-               request_module("ieee80211_crypt_tkip");
-               ops = ieee80211_get_crypto_ops(param->u.crypt.alg);
-       } else if (ops == NULL && strcmp(param->u.crypt.alg, "CCMP") == 0) {
-               request_module("ieee80211_crypt_ccmp");
-               ops = ieee80211_get_crypto_ops(param->u.crypt.alg);
-       }
-       if (ops == NULL) {
+       //set WEP40 first, it will be modified according to WEP104 or WEP40 at other place
+       if (!strcmp(param->u.crypt.alg, "WEP"))
+               module = "ieee80211_crypt_wep";
+       else if (!strcmp(param->u.crypt.alg, "TKIP"))
+               module = "ieee80211_crypt_tkip";
+       else if (!strcmp(param->u.crypt.alg, "CCMP"))
+               module = "ieee80211_crypt_ccmp";
+       if (module)
+               ops = try_then_request_module(ieee80211_get_crypto_ops(param->u.crypt.alg),
+                                             module);
+       if (!ops) {
                printk("unknown crypto alg '%s'\n", param->u.crypt.alg);
                param->u.crypt.err = IEEE_CRYPT_ERR_UNKNOWN_ALG;
                ret = -EINVAL;

diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211_wx.c b/drivers/staging/rtl8192u/ieee80211/ieee80211_wx.c
index c925e53..f2fcdec 100644 (file)
--- a/drivers/staging/rtl8192u/ieee80211/ieee80211_wx.c
+++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_wx.c
@@ -364,11 +364,8 @@ int ieee80211_wx_set_encode(struct ieee80211_device *ieee,
                                    GFP_KERNEL);
                if (!new_crypt)
                        return -ENOMEM;
-               new_crypt->ops = ieee80211_get_crypto_ops("WEP");
-               if (!new_crypt->ops) {
-                       request_module("ieee80211_crypt_wep");
-                       new_crypt->ops = ieee80211_get_crypto_ops("WEP");
-               }
+               new_crypt->ops = try_then_request_module(ieee80211_get_crypto_ops("WEP"),
+                                                        "ieee80211_crypt_wep");
                if (new_crypt->ops && try_module_get(new_crypt->ops->owner))
                        new_crypt->priv = new_crypt->ops->init(key);
 
@@ -591,12 +588,8 @@ int ieee80211_wx_set_encode_ext(struct ieee80211_device *ieee,
        }
        printk("alg name:%s\n",alg);
 
-        ops = ieee80211_get_crypto_ops(alg);
-       if (ops == NULL) {
-               request_module(module);
-               ops = ieee80211_get_crypto_ops(alg);
-       }
-       if (ops == NULL) {
+       ops = try_then_request_module(ieee80211_get_crypto_ops(alg), module);
+       if (!ops) {
                IEEE80211_DEBUG_WX("%s: unknown crypto alg %d\n",
                                   dev->name, ext->alg);
                printk("========>unknown crypto alg %d\n", ext->alg);