mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-09-21 07:01:57 +00:00
323e91a183
spl_blk_load_image() should not return an uninitialized value if
blk_get_devnum_by_uclass_id() fails.
Fixes: 8ce6a2e175 ("spl: blk: Support loading images from fs")
Reported-by: Xavier Drudis Ferran <xdrudis@tinet.cat>
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Xavier Drudis Ferran <xdrudis@tinet.cat>
128 lines
3.1 KiB
C
128 lines
3.1 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2023
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* Ventana Micro Systems Inc.
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*
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*/
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#include <common.h>
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#include <spl.h>
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#include <image.h>
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#include <fs.h>
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struct blk_dev {
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const char *ifname;
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char dev_part_str[8];
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};
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static ulong spl_fit_read(struct spl_load_info *load, ulong file_offset,
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ulong size, void *buf)
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{
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loff_t actlen;
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int ret;
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struct blk_dev *dev = (struct blk_dev *)load->priv;
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ret = fs_set_blk_dev(dev->ifname, dev->dev_part_str, FS_TYPE_ANY);
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if (ret) {
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printf("spl: unable to set blk_dev %s %s. Err - %d\n",
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dev->ifname, dev->dev_part_str, ret);
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return ret;
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}
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ret = fs_read(load->filename, (ulong)buf, file_offset, size, &actlen);
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if (ret < 0) {
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printf("spl: error reading image %s. Err - %d\n",
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load->filename, ret);
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return ret;
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}
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return actlen;
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}
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int spl_blk_load_image(struct spl_image_info *spl_image,
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struct spl_boot_device *bootdev,
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enum uclass_id uclass_id, int devnum, int partnum)
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{
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const char *filename = CONFIG_SPL_FS_LOAD_PAYLOAD_NAME;
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struct legacy_img_hdr *header;
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struct blk_desc *blk_desc;
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loff_t actlen, filesize;
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struct blk_dev dev;
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int ret;
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blk_desc = blk_get_devnum_by_uclass_id(uclass_id, devnum);
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if (!blk_desc) {
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printf("blk desc for %d %d not found\n", uclass_id, devnum);
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return -ENODEV;
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}
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blk_show_device(uclass_id, devnum);
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header = spl_get_load_buffer(-sizeof(*header), sizeof(*header));
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dev.ifname = blk_get_uclass_name(uclass_id);
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snprintf(dev.dev_part_str, sizeof(dev.dev_part_str) - 1, "%x:%x",
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devnum, partnum);
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ret = fs_set_blk_dev(dev.ifname, dev.dev_part_str, FS_TYPE_ANY);
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if (ret) {
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printf("spl: unable to set blk_dev %s %s. Err - %d\n",
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dev.ifname, dev.dev_part_str, ret);
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goto out;
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}
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ret = fs_read(filename, (ulong)header, 0,
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sizeof(struct legacy_img_hdr), &actlen);
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if (ret) {
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printf("spl: unable to read file %s. Err - %d\n", filename,
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ret);
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goto out;
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}
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if (IS_ENABLED(CONFIG_SPL_LOAD_FIT) &&
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image_get_magic(header) == FDT_MAGIC) {
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struct spl_load_info load;
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debug("Found FIT\n");
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load.read = spl_fit_read;
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load.bl_len = 1;
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load.filename = (void *)filename;
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load.priv = &dev;
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return spl_load_simple_fit(spl_image, &load, 0, header);
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}
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ret = spl_parse_image_header(spl_image, bootdev, header);
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if (ret) {
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printf("spl: unable to parse image header. Err - %d\n",
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ret);
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goto out;
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}
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ret = fs_set_blk_dev(dev.ifname, dev.dev_part_str, FS_TYPE_ANY);
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if (ret) {
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printf("spl: unable to set blk_dev %s %s. Err - %d\n",
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dev.ifname, dev.dev_part_str, ret);
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goto out;
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}
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ret = fs_size(filename, &filesize);
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if (ret) {
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printf("spl: unable to get file size: %s. Err - %d\n",
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filename, ret);
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goto out;
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}
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ret = fs_set_blk_dev(dev.ifname, dev.dev_part_str, FS_TYPE_ANY);
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if (ret) {
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printf("spl: unable to set blk_dev %s %s. Err - %d\n",
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dev.ifname, dev.dev_part_str, ret);
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goto out;
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}
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ret = fs_read(filename, (ulong)spl_image->load_addr, 0, filesize,
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&actlen);
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if (ret)
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printf("spl: unable to read file %s. Err - %d\n",
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filename, ret);
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out:
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return ret;
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}
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