mirror of
https://github.com/AsahiLinux/u-boot
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df93cd9c6f
Fix obvious crash when not enough arguments are given to the dfu command. Signed-off-by: Pantelis Antoniou <panto@antoniou-consulting.com>
84 lines
2.1 KiB
C
84 lines
2.1 KiB
C
/*
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* cmd_dfu.c -- dfu command
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*
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* Copyright (C) 2012 Samsung Electronics
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* authors: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
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* Lukasz Majewski <l.majewski@samsung.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <common.h>
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#include <command.h>
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#include <malloc.h>
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#include <dfu.h>
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#include <asm/errno.h>
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#include <g_dnl.h>
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static int do_dfu(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
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{
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const char *str_env;
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char *s = "dfu";
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char *env_bkp;
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int ret;
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if (argc < 3)
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return CMD_RET_USAGE;
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str_env = getenv("dfu_alt_info");
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if (str_env == NULL) {
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printf("%s: \"dfu_alt_info\" env variable not defined!\n",
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__func__);
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return CMD_RET_FAILURE;
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}
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env_bkp = strdup(str_env);
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ret = dfu_config_entities(env_bkp, argv[1],
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(int)simple_strtoul(argv[2], NULL, 10));
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if (ret)
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return CMD_RET_FAILURE;
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if (argc > 3 && strcmp(argv[3], "list") == 0) {
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dfu_show_entities();
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goto done;
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}
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#ifdef CONFIG_TRATS
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board_usb_init();
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#endif
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g_dnl_register(s);
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while (1) {
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if (ctrlc())
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goto exit;
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usb_gadget_handle_interrupts();
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}
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exit:
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g_dnl_unregister();
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done:
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dfu_free_entities();
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free(env_bkp);
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return CMD_RET_SUCCESS;
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}
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U_BOOT_CMD(dfu, CONFIG_SYS_MAXARGS, 1, do_dfu,
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"Device Firmware Upgrade",
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"<interface> <dev> [list]\n"
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" - device firmware upgrade on a device <dev>\n"
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" attached to interface <interface>\n"
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" [list] - list available alt settings"
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);
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