diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/platform/x86/thinkpad_acpi.c | 20 |
1 files changed, 17 insertions, 3 deletions
diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c index bccd449d6152..3b8ceee7c5cb 100644 --- a/drivers/platform/x86/thinkpad_acpi.c +++ b/drivers/platform/x86/thinkpad_acpi.c @@ -8885,17 +8885,31 @@ static bool __pure __init tpacpi_is_fw_digit(const char c) return (c >= '0' && c <= '9') || (c >= 'A' && c <= 'Z'); } -/* Most models: xxyTkkWW (#.##c); Ancient 570/600 and -SL lacks (#.##c) */ static bool __pure __init tpacpi_is_valid_fw_id(const char * const s, const char t) { - return s && strlen(s) >= 8 && + /* + * Most models: xxyTkkWW (#.##c) + * Ancient 570/600 and -SL lacks (#.##c) + */ + if (s && strlen(s) >= 8 && tpacpi_is_fw_digit(s[0]) && tpacpi_is_fw_digit(s[1]) && s[2] == t && (s[3] == 'T' || s[3] == 'N') && tpacpi_is_fw_digit(s[4]) && - tpacpi_is_fw_digit(s[5]); + tpacpi_is_fw_digit(s[5])) + return true; + + /* New models: xxxyTkkW (#.##c); T550 and some others */ + return s && strlen(s) >= 8 && + tpacpi_is_fw_digit(s[0]) && + tpacpi_is_fw_digit(s[1]) && + tpacpi_is_fw_digit(s[2]) && + s[3] == t && + (s[4] == 'T' || s[4] == 'N') && + tpacpi_is_fw_digit(s[5]) && + tpacpi_is_fw_digit(s[6]); } /* returns 0 - probe ok, or < 0 - probe error. |