[PATCH] thinkpad-acpi: Some BIOS versions don't end in WW, remove check

[Keith Packard <keithp@keithp.com>]

My X201s BIOS version string is 6QET46V1 (1.16 ). The
EC version string is 6QHT28WW-1.09. The driver was requiring that both
of these have 'WW' in positions 6 and 7. I don't know what the
significance of having 'V1' there instead is, but removing the test
makes the driver load on my machine.

Signed-off-by: Keith Packard <keithp@keithp.com>
---
 drivers/platform/x86/thinkpad_acpi.c |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)

diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
index eb99223..32f602e 100644
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@ -8617,8 +8617,7 @@ static bool __pure __init tpacpi_is_valid_fw_id(const char* const s,
 		tpacpi_is_fw_digit(s[1]) &&
 		s[2] == t && s[3] == 'T' &&
 		tpacpi_is_fw_digit(s[4]) &&
-		tpacpi_is_fw_digit(s[5]) &&
-		s[6] == 'W' && s[7] == 'W';
+		tpacpi_is_fw_digit(s[5]);
 }
 
 /* returns 0 - probe ok, or < 0 - probe error.
-- 
1.7.4.1