Messages in this thread Patch in this message | | | Date | Wed, 6 Aug 2014 16:39:27 +0800 | From | Dave Young <> | Subject | [PATCH 2/2] efi_rtc: probe function error out in case no efi runtime enabled |
| |
efi rtc depends on efi runtime services, so if efi runtime services are not usable it should error out.
Without this patch rtc-efi will panic with 'noefi' boot
Signed-off-by: Dave Young <dyoung@redhat.com> --- drivers/rtc/rtc-efi.c | 3 +++ 1 file changed, 3 insertions(+)
Index: linux-2.6/drivers/rtc/rtc-efi.c =================================================================== --- linux-2.6.orig/drivers/rtc/rtc-efi.c +++ linux-2.6/drivers/rtc/rtc-efi.c @@ -191,6 +191,9 @@ static int __init efi_rtc_probe(struct p { struct rtc_device *rtc; + if (!efi_enabled(EFI_RUNTIME_SERVICES)) + return -ENODEV; + rtc = devm_rtc_device_register(&dev->dev, "rtc-efi", &efi_rtc_ops, THIS_MODULE); if (IS_ERR(rtc))
| |