mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-13 16:37:30 +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+
|
|
/*
|
|
* Copyright (C) 2023
|
|
* Ventana Micro Systems Inc.
|
|
*
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <spl.h>
|
|
#include <image.h>
|
|
#include <fs.h>
|
|
|
|
struct blk_dev {
|
|
const char *ifname;
|
|
char dev_part_str[8];
|
|
};
|
|
|
|
static ulong spl_fit_read(struct spl_load_info *load, ulong file_offset,
|
|
ulong size, void *buf)
|
|
{
|
|
loff_t actlen;
|
|
int ret;
|
|
struct blk_dev *dev = (struct blk_dev *)load->priv;
|
|
|
|
ret = fs_set_blk_dev(dev->ifname, dev->dev_part_str, FS_TYPE_ANY);
|
|
if (ret) {
|
|
printf("spl: unable to set blk_dev %s %s. Err - %d\n",
|
|
dev->ifname, dev->dev_part_str, ret);
|
|
return ret;
|
|
}
|
|
|
|
ret = fs_read(load->filename, (ulong)buf, file_offset, size, &actlen);
|
|
if (ret < 0) {
|
|
printf("spl: error reading image %s. Err - %d\n",
|
|
load->filename, ret);
|
|
return ret;
|
|
}
|
|
|
|
return actlen;
|
|
}
|
|
|
|
int spl_blk_load_image(struct spl_image_info *spl_image,
|
|
struct spl_boot_device *bootdev,
|
|
enum uclass_id uclass_id, int devnum, int partnum)
|
|
{
|
|
const char *filename = CONFIG_SPL_FS_LOAD_PAYLOAD_NAME;
|
|
struct legacy_img_hdr *header;
|
|
struct blk_desc *blk_desc;
|
|
loff_t actlen, filesize;
|
|
struct blk_dev dev;
|
|
int ret;
|
|
|
|
blk_desc = blk_get_devnum_by_uclass_id(uclass_id, devnum);
|
|
if (!blk_desc) {
|
|
printf("blk desc for %d %d not found\n", uclass_id, devnum);
|
|
return -ENODEV;
|
|
}
|
|
|
|
blk_show_device(uclass_id, devnum);
|
|
header = spl_get_load_buffer(-sizeof(*header), sizeof(*header));
|
|
|
|
dev.ifname = blk_get_uclass_name(uclass_id);
|
|
snprintf(dev.dev_part_str, sizeof(dev.dev_part_str) - 1, "%x:%x",
|
|
devnum, partnum);
|
|
ret = fs_set_blk_dev(dev.ifname, dev.dev_part_str, FS_TYPE_ANY);
|
|
if (ret) {
|
|
printf("spl: unable to set blk_dev %s %s. Err - %d\n",
|
|
dev.ifname, dev.dev_part_str, ret);
|
|
goto out;
|
|
}
|
|
|
|
ret = fs_read(filename, (ulong)header, 0,
|
|
sizeof(struct legacy_img_hdr), &actlen);
|
|
if (ret) {
|
|
printf("spl: unable to read file %s. Err - %d\n", filename,
|
|
ret);
|
|
goto out;
|
|
}
|
|
|
|
if (IS_ENABLED(CONFIG_SPL_LOAD_FIT) &&
|
|
image_get_magic(header) == FDT_MAGIC) {
|
|
struct spl_load_info load;
|
|
|
|
debug("Found FIT\n");
|
|
load.read = spl_fit_read;
|
|
load.bl_len = 1;
|
|
load.filename = (void *)filename;
|
|
load.priv = &dev;
|
|
|
|
return spl_load_simple_fit(spl_image, &load, 0, header);
|
|
}
|
|
|
|
ret = spl_parse_image_header(spl_image, bootdev, header);
|
|
if (ret) {
|
|
printf("spl: unable to parse image header. Err - %d\n",
|
|
ret);
|
|
goto out;
|
|
}
|
|
|
|
ret = fs_set_blk_dev(dev.ifname, dev.dev_part_str, FS_TYPE_ANY);
|
|
if (ret) {
|
|
printf("spl: unable to set blk_dev %s %s. Err - %d\n",
|
|
dev.ifname, dev.dev_part_str, ret);
|
|
goto out;
|
|
}
|
|
|
|
ret = fs_size(filename, &filesize);
|
|
if (ret) {
|
|
printf("spl: unable to get file size: %s. Err - %d\n",
|
|
filename, ret);
|
|
goto out;
|
|
}
|
|
|
|
ret = fs_set_blk_dev(dev.ifname, dev.dev_part_str, FS_TYPE_ANY);
|
|
if (ret) {
|
|
printf("spl: unable to set blk_dev %s %s. Err - %d\n",
|
|
dev.ifname, dev.dev_part_str, ret);
|
|
goto out;
|
|
}
|
|
|
|
ret = fs_read(filename, (ulong)spl_image->load_addr, 0, filesize,
|
|
&actlen);
|
|
if (ret)
|
|
printf("spl: unable to read file %s. Err - %d\n",
|
|
filename, ret);
|
|
out:
|
|
return ret;
|
|
}
|