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authorTejun Heo <htejun@gmail.com>2009-08-16 16:02:36 +0400
committerJeff Garzik <jgarzik@redhat.com>2009-09-09 05:17:48 +0400
commit3e5cd1f2576c720f1d0705fdd7ba64f27e8836b7 (patch)
tree631d41c950d2dc93c110ca86e779cb749c9a8987 /drivers/acpi/blacklist.c
parent02c24fa87724bb3af969463cd74dc3b3feb24740 (diff)
downloadlinux-3e5cd1f2576c720f1d0705fdd7ba64f27e8836b7.tar.xz
dmi: extend dmi_get_year() to dmi_get_date()
There are cases where full date information is required instead of just the year. Add month and day parsing to dmi_get_year() and rename it to dmi_get_date(). As the original function only required '/' followed by any number of parseable characters at the end of the string, keep that behavior to avoid upsetting existing users. The new function takes dates of format [mm[/dd]]/yy[yy]. Year, month and date are checked to be in the ranges of [1-9999], [1-12] and [1-31] respectively and any invalid or out-of-range component is returned as zero. The dummy implementation is updated accordingly but the return value is updated to indicate field not found which is consistent with how other dummy functions behave. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Diffstat (limited to 'drivers/acpi/blacklist.c')
-rw-r--r--drivers/acpi/blacklist.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/acpi/blacklist.c b/drivers/acpi/blacklist.c
index f6baa77deefb..0c4ca4d318b3 100644
--- a/drivers/acpi/blacklist.c
+++ b/drivers/acpi/blacklist.c
@@ -78,9 +78,10 @@ static struct acpi_blacklist_item acpi_blacklist[] __initdata = {
static int __init blacklist_by_year(void)
{
- int year = dmi_get_year(DMI_BIOS_DATE);
+ int year;
+
/* Doesn't exist? Likely an old system */
- if (year == -1) {
+ if (!dmi_get_date(DMI_BIOS_DATE, &year, NULL, NULL)) {
printk(KERN_ERR PREFIX "no DMI BIOS year, "
"acpi=force is required to enable ACPI\n" );
return 1;