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cmd: fix return code of 'sf write' and 'sf read'

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If the offset or the size passed to the 'sf write' or 'sf read' command
exceeds the size of the SPI flash displaying the command usage is not
helpful. Return CMD_RET_FAILURE instead of CMD_RET_USAGE.

Use the CMD_RET_* constants instead of 0, 1, -1.

Simplify a logical expression in the final return statement.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
This commit is contained in:
Heinrich Schuchardt 2023-01-02 18:21:14 +01:00 committed by Jagan Teki
parent 53f4ef0a4b
commit fa3b38d4c4
1 changed files with 7 additions and 7 deletions
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14
cmd/sf.c
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@ -281,33 +281,33 @@ static int do_spi_flash_read_write(int argc, char *const argv[])
loff_t offset, len, maxsize;
if (argc < 3)
return -1;
return CMD_RET_USAGE;
addr = hextoul(argv[1], &endp);
if (*argv[1] == 0 || *endp != 0)
return -1;
return CMD_RET_USAGE;
if (mtd_arg_off_size(argc - 2, &argv[2], &dev, &offset, &len,
&maxsize, MTD_DEV_TYPE_NOR, flash->size))
return -1;
return CMD_RET_FAILURE;
/* Consistency checking */
if (offset + len > flash->size) {
printf("ERROR: attempting %s past flash size (%#x)\n",
argv[0], flash->size);
return 1;
return CMD_RET_FAILURE;
}
if (strncmp(argv[0], "read", 4) != 0 && flash->flash_is_unlocked &&
!flash->flash_is_unlocked(flash, offset, len)) {
printf("ERROR: flash area is locked\n");
return 1;
return CMD_RET_FAILURE;
}
buf = map_physmem(addr, len, MAP_WRBACK);
if (!buf && addr) {
puts("Failed to map physical memory\n");
return 1;
return CMD_RET_FAILURE;
}
if (strcmp(argv[0], "update") == 0) {
@ -332,7 +332,7 @@ static int do_spi_flash_read_write(int argc, char *const argv[])
unmap_physmem(buf, len);
return ret == 0 ? 0 : 1;
return ret ? CMD_RET_FAILURE : CMD_RET_SUCCESS;
}
static int do_spi_flash_erase(int argc, char *const argv[])