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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2013-07-18 17:39:05 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-07-18 17:39:05 -0700 |
| commit | ee114b97e67b2a572f94982567a21ac4ee17c133 (patch) | |
| tree | aeb03d95a6c09f39569f675a85c2029329e07c60 /drivers | |
| parent | 4b8b8a4afa4f794a0029cdf2c13b6789fd38d9de (diff) | |
| parent | 4df05f361937ee86e5a8c9ead8aeb6a19ea9b7d7 (diff) | |
Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Peter Anvin:
"Trying again to get the fixes queue, including the fixed IDT alignment
patch.
The UEFI patch is by far the biggest issue at hand: it is currently
causing quite a few machines to boot. Which is sad, because the only
reason they would is because their BIOSes touch memory that has
already been freed. The other major issue is that we finally have
tracked down the root cause of a significant number of machines
failing to suspend/resume"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86: Make sure IDT is page aligned
x86, suspend: Handle CPUs which fail to #GP on RDMSR
x86/platform/ce4100: Add header file for reboot type
Revert "UEFI: Don't pass boot services regions to SetVirtualAddressMap()"
efivars: check for EFI_RUNTIME_SERVICES
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/firmware/efi/efivars.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/firmware/efi/efivars.c b/drivers/firmware/efi/efivars.c index 8bd1bb6dbe4..8a7432a4b41 100644 --- a/drivers/firmware/efi/efivars.c +++ b/drivers/firmware/efi/efivars.c @@ -583,6 +583,9 @@ int efivars_sysfs_init(void) struct kobject *parent_kobj = efivars_kobject(); int error = 0; + if (!efi_enabled(EFI_RUNTIME_SERVICES)) + return -ENODEV; + /* No efivars has been registered yet */ if (!parent_kobj) return 0; |