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firmware: dmi: Use the proper accessor for the version field 

The byte at offset 6 represents length. Don't take it and drop it
immediately by using proper accessor, i.e. get_unaligned_be24().

[JD: Change the subject to something less frightening]

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Jean Delvare <jdelvare@suse.de>
This commit is contained in:
Andy Shevchenko 2022-07-30 18:28:46 +02:00 committed by Jean Delvare
parent 4b0986a361
commit d2139dfca3
1 changed files with 1 additions and 1 deletions
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2
drivers/firmware/dmi_scan.c
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@ -630,7 +630,7 @@ static int __init dmi_smbios3_present(const u8 *buf)
{
if (memcmp(buf, "_SM3_", 5) == 0 &&
buf[6] < 32 && dmi_checksum(buf, buf[6])) {
dmi_ver = get_unaligned_be32(buf + 6) & 0xFFFFFF;
dmi_ver = get_unaligned_be24(buf + 7);
dmi_num = 0; /* No longer specified */
dmi_len = get_unaligned_le32(buf + 12);
dmi_base = get_unaligned_le64(buf + 16);