From 02c24fa87724bb3af969463cd74dc3b3feb24740 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Sun, 16 Aug 2009 21:01:22 +0900 Subject: dmi: fix date handling in dmi_get_year() Year parsing in dmi_get_year() had the following two bugs. * "00" is treated as invalid instead of 2000 because zero return from simple_strtoul() is treated as error. * "0N" where N >= 8 is treated as invalid of 200N because the leading 0 is considered to specify octal. Fix the above two bugs by using endptr to detect invalid number and forcing decimal. Signed-off-by: Tejun Heo Signed-off-by: Jeff Garzik --- drivers/firmware/dmi_scan.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'drivers/firmware') diff --git a/drivers/firmware/dmi_scan.c b/drivers/firmware/dmi_scan.c index 24c84ae81527..531e621677ce 100644 --- a/drivers/firmware/dmi_scan.c +++ b/drivers/firmware/dmi_scan.c @@ -577,6 +577,7 @@ int dmi_get_year(int field) { int year; const char *s = dmi_get_system_info(field); + char *e; if (!s) return -1; @@ -587,8 +588,8 @@ int dmi_get_year(int field) return 0; s += 1; - year = simple_strtoul(s, NULL, 0); - if (year && year < 100) { /* 2-digit year */ + year = simple_strtoul(s, &e, 10); + if (s != e && year < 100) { /* 2-digit year */ year += 1900; if (year < 1996) /* no dates < spec 1.0 */ year += 100; -- cgit v1.2.1