Messages in this thread Patch in this message | | | From | Dave Young <> | Subject | [PATCH 7/7] efi_rtc: probe function error out in case no efi runtime enabled | Date | Thu, 14 Aug 2014 17:19:13 +0800 |
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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(+)
diff --git a/drivers/rtc/rtc-efi.c b/drivers/rtc/rtc-efi.c index c4c3843..ca2487b 100644 --- a/drivers/rtc/rtc-efi.c +++ b/drivers/rtc/rtc-efi.c @@ -191,6 +191,9 @@ static int __init efi_rtc_probe(struct platform_device *dev) { 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)) -- 1.8.3.1
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