jtag: drivers: with pointers, use NULL instead of 0

[openocd.git] / src / jtag / drivers / parport.c

diff --git a/src/jtag/drivers/parport.c b/src/jtag/drivers/parport.c
index 714cb1daadaed537db148139512bba38b0c55e39..d26a51048fec10a1a2ed832581349933955493a0 100644 (file)
--- a/src/jtag/drivers/parport.c
+++ b/src/jtag/drivers/parport.c
@@ -1,22 +1,11 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+
 /***************************************************************************
  *   Copyright (C) 2005 by Dominic Rath                                    *
  *   Dominic.Rath@gmx.de                                                   *
  *                                                                         *
  *   Copyright (C) 2008 by Spencer Oliver                                  *
  *   spen@spen-soft.co.uk                                                  *
- *                                                                         *
- *   This program is free software; you can redistribute it and/or modify  *
- *   it under the terms of the GNU General Public License as published by  *
- *   the Free Software Foundation; either version 2 of the License, or     *
- *   (at your option) any later version.                                   *
- *                                                                         *
- *   This program is distributed in the hope that it will be useful,       *
- *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
- *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
- *   GNU General Public License for more details.                          *
- *                                                                         *
- *   You should have received a copy of the GNU General Public License     *
- *   along with this program.  If not, see <http://www.gnu.org/licenses/>. *
  ***************************************************************************/
 
 #ifdef HAVE_CONFIG_H
@@ -422,9 +411,13 @@ COMMAND_HANDLER(parport_handle_parport_cable_command)
                return ERROR_OK;
 
        /* only if the cable name wasn't overwritten by cmdline */
-       if (parport_cable == 0) {
+       if (!parport_cable) {
                /* REVISIT first verify that it's listed in cables[] ... */
                parport_cable = malloc(strlen(CMD_ARGV[0]) + sizeof(char));
+               if (!parport_cable) {
+                       LOG_ERROR("Out of memory");
+                       return ERROR_FAIL;
+               }
                strcpy(parport_cable, CMD_ARGV[0]);
        }
 
@@ -458,9 +451,9 @@ COMMAND_HANDLER(parport_handle_parport_toggling_time_command)
                }
 
                parport_toggling_time_ns = ns;
-               retval = jtag_get_speed(&wait_states);
+               retval = adapter_get_speed(&wait_states);
                if (retval != ERROR_OK) {
-                       /* if jtag_get_speed fails then the clock_mode
+                       /* if adapter_get_speed fails then the clock_mode
                         * has not been configured, this happens if parport_toggling_time is
                         * called before the adapter speed is set */
                        LOG_INFO("no parport speed set - defaulting to zero wait states");