staging: speakup: cleanup spk_var_header_by_name()

There is a confusing while loop here and I have re-written it in
canonical for loop format.  Also I reversed the NULL check on "name" and
pulled everything in one tab stop.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/speakup/varhandlers.c

@@ -137,18 +137,15 @@ struct st_var_header *spk_get_var_header(enum var_id_t var_id)
 struct st_var_header *spk_var_header_by_name(const char *name)
 {
 	int i;
-	struct st_var_header *where = NULL;
 
-	if (name != NULL) {
-		i = 0;
-		while ((i < MAXVARS) && (where == NULL)) {
-			if (strcmp(name, var_ptrs[i]->name) == 0)
-				where = var_ptrs[i];
-			else
-				i++;
-		}
+	if (!name)
+		return NULL;
+
+	for (i = 0; i < MAXVARS; i++) {
+		if (strcmp(name, var_ptrs[i]->name) == 0)
+			return var_ptrs[i];
 	}
-	return where;
+	return NULL;
 }
 
 struct var_t *spk_get_var(enum var_id_t var_id)