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-rw-r--r--drivers/platform/x86/thinkpad_acpi.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
index ebcb461bb2b..22d893654d2 100644
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@ -8574,7 +8574,8 @@ static bool __pure __init tpacpi_is_valid_fw_id(const char* const s,
return s && strlen(s) >= 8 &&
tpacpi_is_fw_digit(s[0]) &&
tpacpi_is_fw_digit(s[1]) &&
- s[2] == t && s[3] == 'T' &&
+ s[2] == t &&
+ (s[3] == 'T' || s[3] == 'N') &&
tpacpi_is_fw_digit(s[4]) &&
tpacpi_is_fw_digit(s[5]);
}
@@ -8607,7 +8608,8 @@ static int __must_check __init get_thinkpad_model_data(
return -ENOMEM;
/* Really ancient ThinkPad 240X will fail this, which is fine */
- if (!tpacpi_is_valid_fw_id(tp->bios_version_str, 'E'))
+ if (!(tpacpi_is_valid_fw_id(tp->bios_version_str, 'E') ||
+ tpacpi_is_valid_fw_id(tp->bios_version_str, 'C')))
return 0;
tp->bios_model = tp->bios_version_str[0]