Fix a crach when started without arguments.

brcm_fw_tool/brcm_fw_tool.c

@@ -978,18 +978,18 @@ int main (int argc, char **argv)
 
 	if (verbose) fprintf(stderr, "Verbose mode active\n");
 	
-	if ((strcmp(argv[0], "check") == 0) && (argc == 2)) {
+	if (argc == 2 && strcmp(argv[0], "check") == 0) {
 		cmd = CMD_SIGNATURE_CHECK;
 		in_file = argv[1];
-	} else if ((strcmp(argv[0], "update") == 0) && (argc >= 1)) {
+	} else if (argc >= 1 && strcmp(argv[0], "update") == 0) {
 		cmd = CMD_GENERATE_UPDATE_IMAGE;
 		in_file = argv[1];
-    } else if ((strcmp(argv[0], "write") == 0) && (argc == 2)) {
+    } else if (argc == 2 && strcmp(argv[0], "write") == 0) {
         cmd = CMD_WRITE_FLASH_IMAGE;
         in_file = argv[1];
-    } else if ((strcmp(argv[0], "info") == 0) && (argc >= 1)) {
+    } else if (argc >= 1 && strcmp(argv[0], "info") == 0) {
         cmd = CMD_GET_INFO;
-    } else if ((strcmp(argv[0], "set") == 0) && (argc >= 1)) {
+    } else if (argc >= 1 && strcmp(argv[0], "set") == 0) {
         cmd = CMD_SET_INFO;
     } else {
 		usage();