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| author | Tejun Heo <tj@kernel.org> | 2009-08-16 21:01:22 +0900 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@redhat.com> | 2009-09-08 21:17:47 -0400 |
| commit | 02c24fa87724bb3af969463cd74dc3b3feb24740 (patch) | |
| tree | 8ffcdc8e5aa79cc10f0658c11aaebe2d14d4aaf9 /drivers/firmware/dmi_scan.c | |
| parent | bd30add88cea831dfb854d564478f09ee66206b5 (diff) | |
| download | linux-02c24fa87724bb3af969463cd74dc3b3feb24740.tar.gz | |
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 <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Diffstat (limited to 'drivers/firmware/dmi_scan.c')
| -rw-r--r-- | drivers/firmware/dmi_scan.c | 5 |
1 files changed, 3 insertions, 2 deletions
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; |