staging: rtl8712: rtl871x_mlme: Clean up tests if NULL returned on failure

Some functions like kmalloc/kzalloc return NULL on failure.
When NULL represents failure, !x is commonly used.

This was done using Coccinelle:

@@
expression *e;
identifier l1;
@@

e = \(kmalloc\|kzalloc\|kcalloc\|devm_kzalloc\)(...);
...
- e == NULL
+ !e
Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8712/rtl871x_mlme.c

@@ -1205,7 +1205,7 @@ sint r8712_set_auth(struct _adapter *adapter,
 		return _FAIL;
 
 	psetauthparm = kzalloc(sizeof(*psetauthparm), GFP_ATOMIC);
-	if (psetauthparm == NULL) {
+	if (!psetauthparm) {
 		kfree(pcmd);
 		return _FAIL;
 	}
@@ -1234,7 +1234,7 @@ sint r8712_set_key(struct _adapter *adapter,
 	if (!pcmd)
 		return _FAIL;
 	psetkeyparm = kzalloc(sizeof(*psetkeyparm), GFP_ATOMIC);
-	if (psetkeyparm == NULL) {
+	if (!psetkeyparm) {
 		ret = _FAIL;
 		goto err_free_cmd;
 	}