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ed3a37a248
Registration of USB download gadget might fail for various reasons, so add a check for g_dnl_register() funtion return value. Without this fix, thor_init() will try to access the registered gadget structures resulting in NULL pointer dereference issue. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
76 lines
1.5 KiB
C
76 lines
1.5 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* cmd_thordown.c -- USB TIZEN "THOR" Downloader gadget
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*
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* Copyright (C) 2013 Lukasz Majewski <l.majewski@samsung.com>
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* All rights reserved.
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*/
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#include <common.h>
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#include <thor.h>
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#include <dfu.h>
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#include <g_dnl.h>
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#include <usb.h>
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int do_thor_down(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
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{
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if (argc < 4)
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return CMD_RET_USAGE;
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char *usb_controller = argv[1];
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char *interface = argv[2];
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char *devstring = argv[3];
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int ret;
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puts("TIZEN \"THOR\" Downloader\n");
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ret = dfu_init_env_entities(interface, devstring);
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if (ret)
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goto done;
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int controller_index = simple_strtoul(usb_controller, NULL, 0);
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ret = usb_gadget_initialize(controller_index);
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if (ret) {
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pr_err("USB init failed: %d\n", ret);
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ret = CMD_RET_FAILURE;
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goto exit;
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}
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ret = g_dnl_register("usb_dnl_thor");
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if (ret) {
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pr_err("g_dnl_register failed %d\n", ret);
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return ret;
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}
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ret = thor_init();
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if (ret) {
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pr_err("THOR DOWNLOAD failed: %d\n", ret);
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ret = CMD_RET_FAILURE;
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goto exit;
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}
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ret = thor_handle();
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if (ret) {
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pr_err("THOR failed: %d\n", ret);
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ret = CMD_RET_FAILURE;
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goto exit;
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}
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exit:
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g_dnl_unregister();
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usb_gadget_release(controller_index);
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done:
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dfu_free_entities();
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return ret;
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}
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U_BOOT_CMD(thordown, CONFIG_SYS_MAXARGS, 1, do_thor_down,
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"TIZEN \"THOR\" downloader",
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"<USB_controller> <interface> <dev>\n"
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" - device software upgrade via LTHOR TIZEN download\n"
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" program via <USB_controller> on device <dev>,\n"
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" attached to interface <interface>\n"
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);
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